Gill's index of G&G articles 1934-1980
The GIA has published all the G&G's from 1934 until 1980 online. Combined with the efforts of Joseph Gill this has led to an extremely useful and easy information resource.
Amber
- Spring 1943, Amber, by Briggs, p. 78, 3pp.
- Fall 1959, A pink amber-like resin from Southern Calif., p. 337, 2pp.
- Fall 1963, A Painted Amber, p. 87, 1p.
- Winter 1964, Pressed Amber, p. 243, 2pp.
- Winter 1965, Pressed Amber, p. 370, 2pp.
- Summer 1966, Coated Amber, p. 60, 1p.
- Winter 1967, Amberdan (amber imitation), p. 251, 2pp.
- Summer 1968, Amber Fraud (large spider in amber doublet), p. 318, 2pp.
- Summer 1969, Coated Amber, p. 67, 1p.
- Fall 1970, Varnished Amber (to improve color) , p. 227, 1p.
- Spring 1971, Amber Snuff Bottles, p. 276, 2pp.
- Fall 1972, Amber with many insect inclusions, p. 93, 2pp.
- Winter 1972, Pressed Amber and Natural Amber, p. 116, 1p.
- Winter 1973, Natural amber chips in a plastic, p. 251, 2pp.
- Winter 1976, bugs in plastic imitation of amber, p. 251, 1p.
- Winter 1978, Amber from the Dominican Republic, p. 367, 3pp.
- Fall 1978, Baltic Amber, by Gübelin, p. 66, 11pp.
Amethyst
- Winter 1949, Amethyst color induced in rock crystal via cyclotron, p. 255, 1p.
- Winter 1963, A very rare star amethyst, p. 101, 2pp.
- Summer 1971, Inclusions in amethyst that look like space capsules, p. 322, 2pp.
- Winter 1977, Synthetic Amethyst from Russia, p. 365, 2pp.
- Winter 1978, Synthetic Amethyst, p. 365, 2pp.
- Spring 1979, Synthetic Amethyst, currently no test for a flawless amethyst, p. 151, 3pp.
- Summer 1980, Citrine-Amethyst Quartz - A Gemologically New Material, by John I. Koivula, p. 290, 4pp.
- Winter 1980, More News On Citrine-Amethyst Quartz, by John I. Koivula, p. 409, 1p.
Apatite
- Summer 1962, Cat's-eye apatite, p. 315, 2pp.
- Summer 1963, Yellow cat's-eye apatite, p. 44, 1p.
- Winter 1965, Cat's-eye apatite, p. 372, 1p.
- Summer 1966, A cat's-eye apatite of 220 cts., p. 46, 1p.
- Winter 1972, Rare Earth Absorption Spectra in Apatite, by Anderson, p. 101, 1p.
- Winter 1972, A 40 ct. cat's-eye apatite, p. 114, 1p.
Azurite
Benitoite
- Summer 1953, Benitoite, by Ehrmann, p. 317, 1p.
- Summer 1963, A beautiful 4 1/2-ct. benitoite and a colorless benitoite, p. 55, 1p.
- Spring 1968, Pink benitoite from Calif., p. 284, 2pp.
- Spring 1968, Benitoite Inclusions, p. 285, 2pp.
Chrysoberyl
- Jan. 1934, Chrysoberyl, p. 9, 2pp.
- Winter 1937, A grayish-green star chrysoberyl, p. 130, 1p.
- Fall 1945, A 115 ct. star chrysoberyl (non-gem quality), by Anderson, p. 252, 2pp.
- Spring 1949, The Origin of Alexandrite Color Change, p. 143, 3pp.
- Spring 1949, Chrysoberyl, p. 147, 1p.
- Fall 1953, Inclusions in Yellow Chrysoberyl, by Webster, p. 343, 4pp.
- Spring 1954, Separating yellow chrysoberyl and yellow corundum, p. 32, 1p.
- Spring 1959, A 45 ct., a 12 ct., and a 50 ct. alexandrite, p. 264, 1p.
- Summer 1960, A 4-rayed star brown chrysoberyl, p. 62, 1p.
- Winter 1963, A cat's-eye alexandrite, p. 104, 2pp.
- Fall 1964, Synthetic alexandrite made, p. 216, 1p.
- Fall 1967, Cat's-Eye Doublet, p. 215, 2pp.
- Summer 1970, High-Property Cat's-Eye (R.I. 1.76–1.77), and absorption spectrum, p. 184, 2pp.
- Winter 1972, Synthetic alexandrite, introduced to the market by Creative Crystals, Inc., Danville, Calif., p. 102, 3pp.
- Winter 1972, Chrysoberyl cat's-eye, proved to be natural, p. 113, 1p.
- Winter 1972, Fine cat's-eye glass with milk and honey effect, p. 108, 1p.
- Spring 1973, Fine cat's-eye glass and optic fibers with milk and honey effect, p. 136, 3pp.
- Winter 1974, A new synthetic alexandrite by the Czochralski Method, p. 367, 3pp.
- Summer 1976, A very rare 4-ray star cat's-eye chrysoberyl, p. 170, 1p.
- Fall 1976, Alexandrite from Lake Manyara, Tanzania, by Gübelin, p. 203, 11 pp., with bibliography
- Fall 1976, African alexandrites?, p. 211, 3pp.
- Spring 1979, Natural & Synthetic Alexandrites, p. 148, 1p.
- Spring 1980, Fiber optic cat’s-eye imitation, p. 278, 1p.
- Summer 1980, A Giant Chrysoberyl Crystal, p. 320, 2pp.
Coral
- Spring 1950, Coral, the Forgotten Gem, by Copeland, p. 282, 6pp.
- Fall 1959, Black Coral of Hawaii, p. 337, 1p.
- Fall 1960, Black Coral of Hawaii, p. 72, 3pp.
- Summer 1962, A White Coral Substitute, p. 304, 2pp.
- Spring 1967, Black coral characteristics, p. 146, 1p.
- Fall 1967, Dyed Angel-Skin Coral, p. 209, 1p.
- Summer 1973, A partly silicified coral, p. 182, 2pp.
- Fall 1973, Hawaiian Black Coral, by Webster, p. 196, 3pp.
- Fall 1973, Silicified Coral, p. 206, 2pp.
- Fall 1973, Lapidary of Black Hawaiian Coral, p. 232, 1p.
- Winter 1974, Blue Coral, p. 369, 2pp.
- Winter 1974, Hawaiian black coral, but with a golden sheen, p. 369, 3pp.
- Summer 1979, An Examination of the New Gilson "Coral," by K. Nassau, p. 179, 7pp.
- Winter 1979, Gold Corals – Some Thoughts on Their Discrimination, by Grahame Brown, p. 240, 5pp.
Corundum
- May-June 1934, Adamantine-spar brown corundum (rarely asterism), p. 82, 1p.
- Summer 1937, New black star sapphires found, p. 98, 1p.
- Fall 1939, Lined, foil-backed corundum produces stars and cat’s-eyes, p. 36, 1p.
- Winter 1944, American synthetics available from Linde, p. 185, 1p.
- Summer 1947, Distinction between corundum and garnet, p. 435, 1p.
- Summer 1948, The 1,156 ct. rough, and the 733 ct. cut black star sapphire of Australia, owned by Kazanjian Bros., p. 57, 1p.
- Spring 1954, Distinguishing between yellow corundum and yellow chrysoberyl, p. 31, 1p.
- Winter 1957, Madonna of the Star, the 545 ct. carved star sapphire, owned by Kazanjian Bros., p. 123, 1p.
- Summer 1959, X-ray induced yellow sapphires and their detection, p. 294, 1p.
- Winter 1959, A star sapphire found in Finland, p. 356, 2pp.
- Summer 1960, Synthetic, colorless sapphire as a diamond substitute, p. 59, 2pp.
- Winter 1960, A triplet to produce a star corundum, p. 119, 2pp.
- Fall 1961, Corundum in Tanzania, by Webster, p. 202, 4pp.
- Winter 1961, A 30 ct. corundum-green by day, light red-violet by night, p. 246, 1p.
- Fall 1962, Rubies and Sapphires from Tanzania, p. 340, 1p.
- Winter 1964, Partings in black star sapphires, p. 250, 1p.
- Winter 1968, An inclusion in alexandrite-like sapphire from Montana, p. 373, 1p.
- Summer 1969, X-ray bombarded yellow sapphires, p. 57, 1p.
- Summer 1969, A 277 ct. cab star black sapphire, p. 59, 1p.
- Fall 1970, A 12-rayed star sapphire, p. 231, 2pp.
- Spring 1971, A fluorescent dye in treated corundum, p. 285, 1p.
- Spring 1972, A 3-phase inclusion in a fine purple corundum, p. 11, 1p.
- Summer 1972, A gem alexandrite-like corundum, p. 43, 2pp.
- Winter 1972, Umba River corundum of Tanzania (ruby and sapphire, etc.), p. 104, 2pp.
- Spring 1973, Umba River corundum of Tanzania (ruby and sapphire, etc.), p. 149, 2pp.
- Fall 1974, Borax in jewelry repair involving corundum will cause surface damage, p. 342, 2pp.
- Fall 1974, Tiny round crystals that look like bubbles in corundum, p. 343, 2pp.
- Summer 1975, A slab with black sapphire center and altered pinite edge, p. 44, 2pp.
- Fall 1975, Tiny round crystals that look like bubbles, p. 90, 2pp.
- Fall 1979, Some Sapphire Problems, and a 12-rayed black star sapphire p. 194, 3pp.
- Summer 1980, Corundum Observations and Problems, p. 315, 6pp.
Diamond localities
Africa
- Winter 1946, The Premier and Jagersfontein mines reopened, p. 377, 1p.
- Spring 1949, Kimberlite found in the Bakanga diamond field, Zaire, p. 131, 5pp
- Fall 1949, Diamond Mining in South Africa, p. 216, 4pp.
- Fall 1950, New diamond discovery from the Gold Coast, p. 349, 1p.
- Summer 1951, Diamond Mining in Tanzania, p. 76, 1p.
- Winter 1958, Diamond Mining in Southwest Africa, p. 232, 8pp.
- Winter 1963, The new Fincham diamond mine in S. Africa, p. 107, 5pp.
- Summer 1968, Mining on the coast of S.W. Africa, p. 292, 6pp.
- Winter 1970, Koffyfontein diamond mine, S. Africa, reopens, p. 266, 2pp.
- Spring 1971, Diamond mining in Botswana, p. 295, 4pp.
- Winter 1972, The Orapa diamond mine in Botswana opens, p. 109, 2pp.
U.S.
- Fall 1940, Arkansas Diamond Field, p. 109, 4pp.
- Fall 1941, Arkansas Diamond Mine Changes Hands, p. 168, 1p.
- Spring 1943, Arkansas Diamond Mine, p. 72, 1p.
- Fall 1944, The Punch Jones Diamond of Virginia, p. 169, 1p.
- Winter 1949, Another rough diamond found in Indiana, p. 249, 2pp.
- Winter 1949, Diamonds in Arkansas, p. 257, 1p.
- Spring 1953, History of Diamonds in Wisconsin, p. 284, 2pp.
- Winter 1957, Diamond Mining in Arkansas (historic and recent), p. 355, 8pp.
- Summer 1959, Diamond digging in Arkansas, p. 318, 1p.
- Fall 1959, A 3.65 ct. diamond from Arkansas, p. 343, 1p.
- Spring 1960, a 6.45 ct. diamond from Arkansas, by Harold Branch, p. 7, 3pp.
- Fall 1961, Wisconsin diamonds, p. 210, 6pp.
- Winter 1961, Another diamond found in Arkansas (.83 ct., pictured), p. 245, 2pp.
- Summer 1968, A catalog of the drift diamonds of the Great Lakes area, p. 297, 7pp.
- Winter 1969, An 18.20 ct. diamond found in Louisiana—Mounce Diamond, p. 13, 1p.
- Fall 1977, Diamond find in Arkansas, p. 349, 1p.
Other than Africa & U.S.
- Winter 1942, Notes on some Brazilian diamonds, p. 55, 3pp.
- Winter 1943, Notes on diamond mines of India, p. 115, 2pp.
- Winter 1944, Russian Diamond Production, p. 184, 1p.
- Winter 1948, Diamond find in Canada, doubtful, p. 123, 1p.
- Winter 1949, Diamond Mining in Brazil, by T. Draper, p. 231, 12pp.
- Summer 1950, Origin and Sources of Diamonds in Brazil, by T. Draper, p. 298, 9pp.
- Summer 1950, Indian diamond pipe described, Panna, p. 315, 1p.
- Fall 1950, Diamond find in Quebec (?), p. 354, 1p.
- Summer 1951, The Diamond Mines of Diamantina, Brazil—Past and Present, by T. Draper, p. 49, 9pp.
- Summer 1951, The Ungava Crater, Quebec, no diamonds found, p. 79, 1p.
- Winter 1954, Is Borneo becoming an important diamond source?, p. 126, 1p.
- Summer 1957, Diamond possibilities in Colombia, p. 63, 1p.
- Fall 1960, A 33 ct. diamond found in Borneo, p. 93, 1p.
- Spring 1963, Diamond Mining in Brazil, by Draper, p. 12, 6pp.
- Fall 1965, The Siberian Diamond Deposits, p. 342, 9pp.
- Winter 1967, South American Diamonds and the World Diamond Market (Brazil, Guyana, Venezuela), by E. Miles, p. 226, 13pp.
- Winter 1967, First Brazilian diamond dredge, p. 239, 3pp.
- Winter 1970, The Russian Diamond Industry, by Liddicoat, p. 259, 7pp.
- Fall 1977, Diamonds in Brazil & Venezuela, by Sinkankas, p. 337, 3pp.
Diamond gemology
- March-April 1934, Diamond Loupes, by R. Shipley, p. 38, 2pp.
- May-June 1934, An Engraved Diamond, p. 75, 1p.
- Nov.-Dec. 1934, The Multiple Source Theory of the Diamond, by S. Ball, p. 156, 4pp.
- Sept.-Oct. 1935, Colored Diamonds, by S. Ball, p. 309, 3pp.
- Fall 1937, The Diamond, by Briggs, p. 127, 2pp.
- Summer 1938, The Color of a Diamond, p. 174, 1p.
- Winter 1938, Radium-Treated Diamonds, p. 194, 1p.
- Summer 1941, A Glossary of Diamond Terms ... (Aberration-Ballas), p. 151, 3pp.
- Fall 1941, (Bantam-Boort), p. 173, 2pp.
- Winter 1941, (Borneo-Bubbles), p. 182, 2pp.
- Spring 1942, (Bultfontein Mine-Clean), p. 13, 2pp.
- Summer 1942, (Cleavage-Cutting Centers), p. 29, 4pp.
- Fall 1942, (Cutting, History of-Dyke), p. 43, 4pp.
- Winter 1942, (Eclogite-Fracture), p. 59, 4pp.
- Spring 1943, (Fromesite bort-Holland Rose Cut), p. 73, 4pp.
- Summer 1943, (Holohedral-Interference, Color), p. 95, 2pp.
- Fall 1943, (Intergrowth-Knot lines), p. 105, 4pp.
- Winter 1943, (Koffeyfontein Mine-Luminescence), p. 119, 6pp.
- Spring 1944, (Lumpy-Mill), p. 138, 3pp.
- Summer 1944, (Miller indices-Moon of the Mountains Diamond), p. 155, 2pp.
- Fall 1944, (Mora Diamond-Neck), p. 171, 2pp.
- Winter 1944, (Negative Crystals-Old Mine Stone), p. 191, 2pp.
- Spring 1945, (Onca-Orloff Diamond), p. 215, 2pp.
- Summer 1945, (Orloff Diamond, cont.-Parting), p. 237, 2pp.
- Fall 1945, (Parure-Perfect), p. 261, 2pp.
- Winter 1945, (Perfect, cont.-Pigot Diamond), p. 289, 3pp.
- Spring 1946, (Pink Diamonds-Point Naive), p. 315, 2pp.
- Summer 1946, (Polariscope-Porter Rhodes Diamond), p. 335, 2pp.
- Fall 1946, (Portrait Stone-Proper Proportions), p. 355, 2pp.
- Winter 1946, (Properties-Regent Diamond), p. 379, 2pp.
- Spring 1947, (Regent Diamond, cont.-Riviere), p. 409, 2pp.
- Fall 1941, Diamond Color Grading, p. 162, 7pp.
- Winter 1945, The extreme scarcity of fine-color flawless diamonds, p. 276, 7pp.
- Winter 1945, The new colorscope grades color, p. 286, 2pp.
- Spring 1947, Fluorescent Diamonds, by Switzer, p. 392, 3pp.
- Spring 1947, The Abundance and Color of Fluorescent Diamonds, by Shipley, p. 395, 6pp.
- Summer 1947, Color range and form variations in diamonds, p. 430, 2pp., plus one color plate
- Fall 1947, The two types of single diamond crystal forms, p. 455, 7pp.
- 1948, The History of Diamonds-King of Gems, by Ball, p. 18, 5pp.
- Winter 1948, Research lab erected in South Africa, p. 121, 2pp.
- Summer 1949, Radioactive Diamonds, p. 167, 4pp.
- Summer 1950, Bombarded Diamonds, by M. Ehrmann, p. 295, 4pp.
- Summer 1950, Sir William Crookes treated green diamonds in 1914, p. 317, 2pp.
- Fall 1950, The diamond research lab, S. Africa, p. 327, 7pp.
- Winter 1950, Recovery of diamonds by electrostatic separation, p. 385, 2pp.
- Spring 1951, Recognizing Surface Irradiated Diamonds, by Pough, p. 3, 9pp.
- Spring 1954, Bombarded diamonds, p. 29, 2pp.
- Summer 1954, Testing natural blue and treated blue diamonds, p. 35, 3pp.
- Winter 1955, Microstructures of Diamond Surfaces, by Tolansky, p. 242, 8pp.
- Winter 1955, The Two Types of Diamond (I, IIa, lIb), p. 255, 1p.
- Summer 1957, Diamond Substitutes, by L. Benson (each discussed), p. 56, 5pp.
- Winter 1957, Spectroscopic recognition of yellow bombarded diamonds, by *Crowningshield, p. 99, 7pp., with large bibliography
- Winter 1957, Minor elements in diamonds and their effect on diamond colors, p. 111, 4pp.
- Winter 1958, Treated diamonds show very strong radiation, p. 230, 2pp.
- Spring 1959, Color treating diamonds by neutron surface irradiation, done in U.S., p. 266, 2pp.
- Spring 1959, Treated red, blue and blue-green diamonds, p. 268, 2pp.
- Summer 1959, Coating detected on a marquise diamond, p. 292, 2pp.
- Summer 1959, A diamond, fine brownish-yellow by night and green by day, p. 293, 3pp.
- Summer 1959, A simple device to test blue diamond conductivity, p. 296, 3pp.
- Winter 1959, Gold mountings break in strong bleach, p. 358, 2pp.
- Summer 1960, Pink diamonds change color in X-ray, p. 45, 2pp.
- Summer 1960, An audio conduction detector for Type lIb diamonds, p. 49, 2pp.
- Fall 1960, Green diamonds (radium treated), p. 69, 2pp.
- Winter 1960, Diamonds burned in fires, p. 118, 2pp.
- Summer 1961, Natural yellow diamonds (including spectrum), p. 184, 2pp.
- Winter 1961, Artificial Coloration of Diamonds, p. 227, 15pp., with large bibliography
- Winter 1961, An autoradiograph of a radium-treated diamond, p. 242, 2pp.
- Summer 1962, Diamond Doublets, p. 305, 2pp.
- Summer 1962, The Surface Structure of Diamonds, p. 309, 6pp.
- Fall 1962, Determining origin of colors in diamonds, p. 344, 1p.
- Winter 1962, Diamond Coating Techniques and Their Detection, by E. Miles, p. 355, 11pp.
- Winter 1962, Diamond and synthetic sapphire doublet, p. 379, 2pp.
- Spring 1963, A grayish-yellow Type IIb diamond, p. 24, 2pp.
- Spring 1963, Cyclotron-treated diamond, p. 26, 1p.
- Fall 1963, Orange cyclotron-treated diamond, p. 82, 1p.
- Fall 1963, Conductivity of blue diamonds, p. 84, 2pp.
- Spring 1964, Diamonds burned in fires, p. 149, 2pp.
- Spring 1964, A hollow back diamond in closed molded setting to simulate pavilion, p. 150, 3pp.
- Spring 1964, Pink diamonds and their characteristics, p. 155, 1p.
- Summer 1964, Coated Diamonds, by E. Miles, p. 163, 6pp.
- Summer 1964, A cross of diamond doublets, p. 181, 1p.
- Winter 1964, Twin lines and crystal growth lines, p. 252, 1p.
- Spring 1965, "Piggy-back" mounted diamonds, one over the other, p. 262, 3pp.
- Winter 1965, A natural-color deep green diamond, p. 362, 1p.
- Winter 1965, A natural-color deep green, a blue and a red diamond, p. 362, 1p.
- Winter 1965, "Piggy-back" of three layers, not touching (first time seen), p. 362, 2pp.
- Spring 1966, Diamonds show discoloration after repeated washing in hard water, p. 22, 1p.
- Summer 1966, A rose cut diamond (14½ x 6mm) in carved closed metal setting imitating large diamond, p. 43, 2pp.
- Fall 1967, Rare light-blue diamonds, Type IIb, p. 209, 2pp.
- Winter 1967, Brown diamonds and their inclusions, p. 249, 2pp.
- Summer 1968, Radium-treated diamonds, p. 304, 2pp.
- Fall 1969, Spectrum of a natural gray diamond, p. 89, 2pp.
- Winter 1969, Cyclotron-treated diamonds detected only by microscope, p. 125, 2pp.
- Winter 1969, An unusual spectrum seen in a yellow-brown diamond, p. 126, 2pp.
- Summer 1970, A bicolored marquise diamond (outside rim, yellow-green; center area, medium red), p. 182, 2pp.
- Fall 1970, Ultra-violet light in D to G color diamonds, p. 226, 1p.
- Winter 1970, The facts about diamond imitations, p. 245, 4pp.
- Spring 1971, Russian Diamonds, p. 285, 2pp.
- Spring 1971, Diamond top, zircon back doublets, p. 287, 1p.
- Spring 1971, Determining a black diamond natural or treated, p. 287, 2pp.
- Fall 1971, Burning (oxidizing) rough diamond crystal to improve surface color, p. 345, 1p.
- Winter 1971, Diamond and zircon (or strontium titanite, spinel, etc.) doublets, p. 375, 2pp.
- Winter 1971, Diamonds treated pink, p. 380, 1p.
- Spring 1972, A piggy-back setting, p. 9, 2pp.
- Summer 1972, A 30 ct. black diamond, p. 41, 2pp.
- Summer 1972, A large hexagonal rose cut diamond set with foiled pavilion, closed back, p. 54, 1p.
- Fall 1972, 25 years of diamond research by De Beers Industrial Diamond Div., p. 66, 11pp.
- Fall 1972, Diamonds treated to intense yellow and blue colors, from Mass., p. 82, 2pp.
- Fall 1972, Diamonds burned in fires, p. 89, 3pp.
- Winter 1972, Banded diamonds and clarity; Type lIb diamonds, p. 106, 2pp.
- Winter 1972, Diamond Doublets, p. 107, 2pp.
- Fall 1973, Unusual fluorescence in a diamond, p. 200, 1p.
- Spring 1975, An intense natural canary, no absorption lines, p. 17, 2pp.
- Summer 1975, A black diamond with a colorless center, p. 47, 2pp.
- Summer 1975, A diamond burned in repair work, p. 57, 2pp.
- Summer 1975, A "chameleon diamond" (shows color change), dark yellow-green to yellow; 3rd seen at GIA, p. 57, 2pp. (Type l lb. diamond may or may not loose conductivity when treated.)
- Fall 1975, An unusual cyclotron-treated diamond, shows color line, p. 72, 2pp.
- Winter 1976, Cape diamond painted blue, p. 124, 2pp. (See also Summer 1976, p. 183, 1p.)
- Spring 1976, Cubic Zirconia, A New Diamond Imitation, p. 143, 2pp. (See also Spring 1976, p. 154, 2pp.)
- Summer 1976, A cyclotron-treated emerald-cut green diamond, p. 171, 2pp.
- Summer 1976, A diamond turned yellow by washing in hard water, p. 182, 2pp.
- Summer 1976, A complete spiral scratch on a diamond's table, of unknown origin, p. 185, 1p.
- Fall 1976, Zirconium oxide, a diamond simulant, p. 221, 2pp.
- Winter 1977, Cape lines missing in "true canary," p. 235, 1p.
- Summer 1977, Notes on treated pinks, blacks, and brown IIb's, p. 306, 2pp.
- Summer 1977, Conchoidal fracture in diamonds, p. 309, 2pp.
- Fall 1977, Cubic Zirconia; moss patched on the surface of radium treated diamonds, p. 345, 3pp.
- Winter 1977, More on Cubic Zirconia, p. 361, 3pp.
- Winter 1977, Colors of IIb diamonds; a light greenish-blue IIa diamond; an intense 5400Å line in intense yellow-brown diamond, p. 363, 2pp.
- Summer 1978, Cubic Zirconia (show colored material), by R. T. Liddicoat, Jr. and J. I. Koivula, p. 58, 3pp.
- Fall 1978, Laser Reflection Patterns in Diamond and Diamond Substitutes, by Eunice R. Miles, p. 77, 8pp.
- Fall 1978, The New Gem Diamond Testing Pen, by Rick Shaw, p. 92, 4pp. (also shows water drop test) (See also Jour. of Gemmo., July 1981, p. 446, 3pp.)
- Winter 1978, The Ceres Diamond Probe test for Diamond Substitutes, by K. Nassau, p. 98, 6pp.
- Winter 1978, Distinguishing Diamond from Cubic Zirconia, old and new tests, by K. Nassau, p. 111, 7pp.
- Winter 1978, Two Interesting Treated Diamonds (radium treated color a dark tourmaline-like yellowish green), p. 125, 2pp.
- Spring 1979, Cubic Zirconia, notes, p. 148, 3pp.
- Spring 1979, Testing blue and pink diamonds in the spectroscope, p. 150, 1p.
- Spring 1979, Coated Cubic Zirconia passed ink test, p. 150, 1p.
- Spring 1979, Using cryogenics to test green diamonds and treated brown diamond with a 6400A.U. Line, p. 151, 1p., and see p. 154, 1p.
- Spring 1979, Green diamond owes color to graining, p. 154, 1p.
- Spring 1979, Fashioning Cubic Zirconia, by Bill Kerr, p. 155, 3pp.
- Fall 1979, High color small diamonds, p. 200, 2pp.
- Fall 1979, Size and Diamond Grading Color, p. 200, 3pp.
- Fall 1979, The Size and Weight of Diamond and Diamond Imitations, by K. Nassau, p. 203, 2pp.
- Winter 1979, Know Your Diamonds, more books on diamonds (refers to “Gill’s Index”), by Betsy Barker, p. 247, 7pp.
- Summer 1980, A black rose cut diamond, p. 321, 1p.
- Winter 1980, Seldom Seen Absorption Spectra in Diamonds, p. 392, 1p.
Laser treatment
- Fall 1970, Lasering diamonds, first done, p. 224, 3pp.
- Winter 1971, Improved lasering techniques for diamonds, p. 370, 2pp.
- Spring 1972, Laser drilling diamonds, p. 21, 2pp.
- Summer 1972, Laser drilling diamonds, p. 56, 3pp.
- Fall 1972, More on laser drilling diamonds, p. 89, 3pp.
- Winter 1972, A deep laser hole, p. 114, 1p.
- Spring 1973, Interesting laser drilling, p. 139, 2pp.
- Spring 1973, Attitudes toward laser drillings, p. 144, 2pp.
- Winter 1973, Many laser holes in one diamond, p. 230, 2pp.
- Winter 1976, Seventeen laser drill holes in one diamond, p. 124, 1p.
Diamond inclusions
- Winter 1947, A Diamond in a Diamond, by Liddicoat, p. 492, 2pp.
- Fall 1950, A Diamond in a Diamond the Slijper Diamond, p. 347, 2pp.
- Spring 1952, Unusual white cloudy bands from corner to corner in three directions in an octahedron diamond crystal (on cover) (See also Summer 1966, p. 40, 2pp.)
- Summer 1963, Diamond Inclusions, p. 51, 4pp.
- Fall 1964, Needle-like inclusions in a diamond, p. 218, 1p.
- Spring 1965, Needle-like inclusions in diamonds, p. 268, 2pp.
- Spring 1965, Typical cloud in natural-colored brown diamonds, p. 269, 2pp.
- Winter 1965, Rare moss-like inclusions in diamond; and other inclusions, p. 364, 1p.
- Fall 1966, Rare moss-like inclusions in diamond, p. 72, 2pp.
- Spring 1967, Sugar-cube-like inclusions in diamond, p. 137, 2pp.
- Spring 1967, Sugar-cube-like inclusions in diamond (from Sierra Leone), p. 146, 2pp.
- Spring 1967, Rounded crystal inclusions and a Maltese Cross inclusion, p. 154, 2pp.
- Spring 1968, First fingerprint inclusions, first needles (in three directions) inclusions in diamond, seen at GIA, p. 278, 2pp.
- Fall 1968, Sugar-cube-like inclusions under high magnification, p. 344, 2pp.
- Fall 1969, Color banding in a treated yellow-brown diamond, p. 92, 2pp.
- Spring 1970, Needle-like inclusions in diamond (almost a star), p. 153, 1p.
- Spring 1970, Milky white diamond, p. 156, 2pp.
- Spring 1971, Graining in diamond, p. 286, 1p.
- Spring 1971, Crazed diamond surface, p. 286, 1p.
- Fall 1971, Graining in diamonds. and grading problems, p. 344, 2pp.
- Fall 1971, Tomahawk shaped knot on a brilliant diamond table, p. 345, 2pp.
- Fall 1971, Square graining, and clarity grading ranges, p. 360, 2pp.
- Winter 1971, Rare diamond inclusions, p. 372, 2pp.
- Winter 1971, Graining in clarity of a large green diamond, p. 385, 1p.
- Spring 1972, Surface graining shows on facet polish, p. 11, 2pp.
- Spring 1972, Grain and growth lines in diamonds, p. 22, 2pp.
- Fall 1973, An interesting cross inclusion in a diamond, p. 201, 2pp.
- Fall 1974, A moss-like inclusion in a diamond, p. 331, 2pp. (See also Winter 1983, p. 233, 1p.)
- Fall 1974, A nail-like inclusion in diamond, p. 340, 2pp.
- Fall 1974, A lifelike bug inclusion in diamond, p. 342, 1p.
- Fall 1974, Needles, and octahedral diamond crystals included in diamonds, p. 347, 2pp.
- Fall 1975, A treated green diamond with a Maltese Cross, p. 76, 1p.
- Fall 1975, A sugar-cube-like inclusion with protruding needle, p. 76, 2pp.
- Winter 1976, A two-phase inclusion, liquid and gas, in a diamond, p. 114, 1p.
- Summer 1976, Spherical bubble-like inclusions in a diamond, p. 183, 2pp.
- Fall 1976, A brown diamond shows very knotty table, p. 213, 1p.
- Fall 1976, Laser holes and damage to diamonds, p. 218, 2pp.
- Fall 1976, A centipede-like inclusion in a diamond, p. 219, 1p.
- Winter 1976, Excessive lasering, p. 233, 1p.
- Summer 1977, Clarity rules on graining, p. 297, 3pp.
- Summer 1977, A 6-rayed snowflake inclusion, p. 307, 2pp.
- Fall 1977, Analytical Results of Poly-Mineralic Sulfide Inclusions in Diamond, Gübelin, p. 322, 6pp.
- Winter 1978, Worm-like inclusions in diamond, p. 364, 1p.
- Fall 1979, Interesting Diamond Inclusions and Characteristics, p. 196, 5pp
- Fall 1979, Cubic cloud and octahedron cloud, Natural cube rough, Green Graining, & Feather, p. 209, 5pp.
- Fall 1979, Green grain line in high color diamond, p. 210, 1p.
- Spring 1980, Sugar cube and crystal inclusion, p. 265, 2pp.
- Summer 1980, The Elusive Nature of Graining in Gem Quality Diamonds, by Robert E. Kane, p. 294, 21pp.
- Winter 1980, Epigenetic Stains in Diamonds & Clouds in Diamonds, p. 397, 3pp.
- Winter 1980, Phantom crystal in a diamond, p. 410, 2pp.
Diamond grading and cutting
- Summer 1936, The New Line-Cut Diamond, p. 43, 2pp.
- Winter 1936, The new diamond cuts break easier than thicker old cuts, p. 68, 1p.
- Winter 1936, Notes on diamond grading (clarity and color), p. 77, 2pp.
- Summer 1937, Gauges for diamond proportions, p. 109, 3pp.
- Fall 1937, New diamond grading equipment (microscopes), p. 114, 5pp.
- Summer 1939, Increased demand for spready diamonds, p. 24, 1p.
- Fall 1940, Diamond Color Gauge, p. 105, 1p.
- Spring 1942, Evaluating Diamond Make, p. 2, 5pp.
- Spring 1943, Girdle-faceted diamonds, p. 71, 1p.
- Winter 1944, More patents on modifications of the brilliant diamond, p. 184, 1p.
- Spring 1945, New and Old Novelty Styles of Brilliant Cutting, by Shipley, p. 194, 7pp.
- Fall 1945, Diamond Cutting By the Electric Arc Method, p. 263, 5pp.
- Winter 1945, The Diamondscope, p. 285, 4pp.
- Summer 1946, The Leveridge Gauge and weight estimation, p. 324, 2pp.
- Summer 1947, The new standard Diamondlite, p. 431, 1p.
- Winter 1947, Estimating weights of recut diamonds with the Leveridge Gauge, p. 486, 4pp.
- Winter 1948, New classification of rough diamonds by De Beers Co., p. 120, 2pp.
- Spring 1950, Diamond Jewelry Through the Ages, p. 267, 11pp.
- Winter 1953, Procedures for Cutting and Grading Diamond, by G. Kaplan, p. 355, 7pp.
- Summer 1956, Modern diamond cutting tools, p. 310, 10pp.
- Spring 1958, Electronic Colorimeter for Diamonds, by Shipley, p. 136, 9pp.
- Summer 1958, Clarity in Diamonds, p. 174, 7pp.
- Spring 1959, A large rose diamond, 13 1/2 mm x l l/2 mm, p. 266, 1p.
- Fall 1959, Another large rose diamond, 15mm x 2.1mm, p. 336, 1p.
- Winter 1961, The new princess cut, p. 250, 1p.
- Fall 1962, Rapid Sight Estimates of Diamond Cutting Quality, by Liddicoat, p. 323, 13pp.
- Fall 1962, The 20th Century cut, p. 340, 1p.
- Winter 1963, Estimating diamond weight before and after recutting, p. 118, 3pp.
- Winter 1965, A diamond with 122 facets, p. 360, 2pp., (See also Winter 1966, p. 112, 2pp.)
- Spring 1967, Diamond Proportion Grading and the New Proportionscope (pictured on back cover), p. 130, 7pp.
- Spring 1968, The Optics of Brilliant Cut Diamonds, p. 263, 9pp.
- Fall 1968, A large rose cut diamond fraudulently set in closed-back setting to imitate larger stone, p. 350, 2pp.
- Fall 1969, Modern rose cut diamonds, p. 90, 2pp.
- Winter 1969, Polished or unpolished girdles (?), p. 120, 2pp.
- Spring 1970, Polished or unpolished girdles, p. 161, 1p.
- Fall 1970, Diamond polished nearly parallel to cleavage (grain), p. 230, 2pp.
- Fall 1971, A 20th Century cut diamond, p. 345, 1p.
- Winter 1971, The Barion Cut, a new standard mixed cut for diamonds, p. 366, 4pp.
- Winter 1971, Double girdles to eliminate bearding, p. 372, 3pp.
- Winter 1971, A huge pear-shape rose cut diamond (foil backing to imitate pavilion), p. 375, 2pp.
- Spring 1974, The 144-facet diamond is 32% more brilliant than the 58-facet diamond, p. 259, 12pp.
- Fall 1974, A very thin and deep laser hole, p. 347, 2pp.
- Summer 1975, Twinning plane causes polishing problems, p. 46, 1p.
- Fall 1975, Faceting Limits (diamonds and colored stones), p. 78, 10pp.
- Winter 1976, The Various Effects of Faceted Gems, p. 98, 15pp.
- Fall 1977, The New "Radiant-Cut", p. 332, 2pp.
Diamond trade
- March-April 1934, Antwerp cutters optimistic, p. 48, 1p.
- Jan. 1934, Diamonds at the 1933 Chicago World's Fair, p. 23, 4pp.
- March-April 1934, How to Buy Diamonds, p. 63, 2pp.
- Nov.-Dec. 1934, Changes in the Marketing of Diamonds, by E. Oppenheimer, p. 159, 1p.
- Jan.-Feb. 1935, Reminiscences of a S. African diamond buyer in 1921, p. 184, 4pp.
- March-April 1935, Diamond buying as an investment (false?), p. 232, 1p.
- Fall 1936, The Diamond Market, p. 50, 1p.
- Winter 1936, The Diamond Industry, by Ball, p. 67, 2pp.
- Fall 1939, A Visit to the Diamond Market, p. 34, 3pp.
- Summer 1940, Recent Developments in the Diamond Industry, by Ball, p. 85, 2pp.
- Winter 1940, The Diamond Industry in 1940, by Ball, p. 114, 3pp.
- Spring 1944, The Diamond Industry As Of April 29, 1944, by Ball, p. 126, 3pp.
- Fall 1946, The Diamond Industry in 1945, by Ball, p. 346, 3pp.
- Winter 1948, The Diamond Industry in 1947, by Ball, p. 111, 3pp.
- Fall 1949, The Diamond Syndicates and Their Successors, by Shipley, p. 199, 8pp.
- Fall 1949, New wage scale for U.S. diamond cutters, p. 219, 2pp.
- Fall 1949, The Six Diamond Clubs in the World, p. 220, 1p.
- Fall 1949, Origin and use of the diamond engagement ring, p. 223, 4pp.
- Winter 1949, The Diamond Industry in 1948, p. 251, 4pp.
- Fall 1950, The Diamond Industry in 1949, p. 341, 3pp.
- Winter 1951, Heavy Media Separation Success, by Liddicoat, p. 116, 4pp.
- Winter 1951, The Diamond Industry in 1950, by Foshag and Switzer, p. 129, 4pp.
- Spring 1952, Diamond History and Mining Over the World, p. 154, 8pp.
- Winter 1953, Alluvial Diamond Recovery, p. 365, 2pp.
- Winter 1953, Alluvial Diamond Recovery by Electrostatic Separation, p. 374, 2pp.
- Winter 1954, Currency Value Differences in the Diamond Trade, by Kaplan, p. 123, 2pp.
- Summer 1955, Diamond Selling Practices, by Liddicoat, p. 165, 7pp.
- Summer 1957, Text of speech to American Gem Society on "Diamond Rulings," by Liddicoat, p. 38, 5pp.
- Winter 1959, De Beers made exclusive agent for Russian diamonds, p. 373, 1p.
- Fall 1963, Diamond Mining and Recovery Today, p. 67, 15pp.
- Fall 1966, Six Centuries of Diamond Design, by Tillander, p. 77, 18pp.
- Summer 1971, Diamond Prices of a Century Ago, by Liddicoat, p. 325, 3pp. (See also Spring 1972, p. 29, 1p.)
- Spring 1972, The Israeli Diamond Polishing Industry, p. 2, 6pp.
- Summer 1980, A New View of Diamond's Beauty – The 'Cone of Brilliance',' by George R. Kaplan, p. 324, 2pp.
Emerald
- Nov.-Dec. 1934, Emerald mining in Colombia, p. 149, 6pp.
- Spring 1938, South African emeralds, p. 146, 1p.
- Summer 1940, Differences Between Russian and Colombian Emeralds, by Gübelin, p. 89, 4pp.
- Spring 1941, The Emerald Mines of Muzo, Colombia, p. 130, 5pp.
- Winter 1943, "Indian emeralds"–crackled quartz, dyed, p. 118, 1p.
- Summer 1945, A cat's-eye emerald, p. 222, 1p.
- Fall 1947, The 2,226 gram Emerald of Iakov I. Kakovin, p. 469, 2pp.
- Winter 1947, The Emerald in Fable and History, p. 497, 3pp.
- Spring 1948, Recent Emerald Production of Colombia, p. 25, 2pp.
- Spring 1951, Data on Indian Emeralds, by Gübelin, p. 13, 10pp.
- Summer 1950, Emerald mine report from Colombia, p. 316, 1p.
- Summer 1950, Emeralds mined in India, p. 321, 1p.
- Fall 1950, Indian Emeralds, by Webster, p. 344, 2pp.
- Winter 1950, Report of Chivor emerald mines, p. 376, 3pp.
- Fall 1955, The new Gachala emerald mine in Colombia, p. 195, 2pp.
- Summer 1956, The Emeralds from Habachtel, Austria, by Gübelin, p. 295, 15pp.
- Fall 1958, The New Emeralds from Sandawana, Southern Rhodesia, by Gübelin, p. 195, 9pp.
- Fall 1958, Sandawana Emeralds-Some Commercial Aspects, p. 221, 3pp.
- Spring 1959, A near flawless and beautiful color emerald 12.65 cts., p. 264, 2pp.
- Spring 1959, Another Emerald Deposit Found in Rhodesia, p. 284, 1p.
- Fall 1960, An oxidation layer seen on old emeralds, p. 70, 1p.
- Spring 1961, A New Emerald Find Near Borur, Colombia, p. 142, 2pp.
- Winter 1961, Brazilian pegmatite emerald and its absorption spectrum, p. 244, 1p.
- Winter 1961, New Data on New Deposit of Australian Emeralds, by Gübelin, p. 251, 1p.
- Winter 1963, A New Source of Emeralds in Brazil, by Draper, p. 111, 5pp.
- Fall 1964, Trapiche Emeralds from Colombia, p. 210, 5pp.
- Winter 1964, Chromeless emeralds from Brazil identified as emeralds by GIA, p. 244, 1p.
- Spring 1965, Trapiche emeralds from Colombia, p. 265, 3pp.
- Summer 1967, Trapiche emeralds from Colombia in large sizes, p. 181, 2pp.
- Fall 1967, Black-core emerald crystals, p. 799, 3pp.
- Fall 1967, A new emerald source in Australia, p. 220, 4pp.
- Spring 1968, The black material in trapiche emeralds, p. 287, 2pp.
- Summer 1968, Inclusions in Russian and Colombian emeralds, p. 305, 3pp.
- Summer 1968, Trapiche emeralds, p. 316, 2pp.
- Summer 1968, Zambia emeralds, p. 320, 1p.
- Spring 1969, Notable Emeralds in the Crown Jewels of Iran, by Meen, p. 8, 3pp.
- Spring 1969, Changes in synthetic emeralds, p. 23, 2pp.
- Summer 1969, Russian emeralds, p. 63, 2pp.
- Summer 1969, First fluorite inclusion seen in emerald, p. 53, 2pp.
- Summer 1970, Natural etched trapiche crystal left on girdle, p. 187, 2pp.
- Summer 1970, A 7 ct. faceted trapiche emerald, p. 195, 1p.
- Fall 1970, 3-phase inclusions, with two bubbles, found in Colombian emeralds, p. 235, 2pp.
- Winter 1970, North Carolina emeralds, p. 251, 3pp.
- Spring 1971, 2-phase inclusions in Colombian emeralds, p. 275, 1p.
- Spring 1971, Trapiche emeralds, inclusions and high R.I., p. 277, 1p.
- Winter 1971, New type inclusions in natural emeralds, p. 379, 2pp.
- Spring 1972, A heat-wave pattern inclusion in natural emeralds, p. 18, 2pp.
- Summer 1972, Unusual quartz inclusions in North Carolina emeralds, p. 34, 4pp.
- Summer 1972, New emerald find from Marua District, Mozambique, p. 52, 2pp.
- Fall 1972, Muzo Emerald Mine, Colombia, p. 77, 5pp.
- Fall 1972, A plane of pyrites in a Colombian emerald, p. 93, 2pp.
- Spring 1973, Parisite in Muzo emeralds and Trapiche emeralds, p. 148, 2pp.
- Winter 1973, Heavy concentration of pyrites in a Colombian emerald, p. 253, 2pp.
- Spring 1975, A helical inclusion in emerald, p. 28, 1p. (See also Fall 1983, p. 173, 1p.)
- Fall 1975, Color zoning in an emerald, p. 73, 2pp.
- Summer 1976, Included rutile needles in emerald, p. 174, 1p.
- Fall 1976, A quartz crystal inclusion in Colombian emerald, p. 213, 1p. (See also Summer 1977, p. 314, 1p.)
- Fall 1977, Very strong color zoning in emerald, p. 328, 2pp.
- Fall 1977, Colombian Emeralds, by Sinkankas, p. 334, 4pp.
- Winter 1977, A Puzzling Natural Emerald and “Ferrer” glass imitation emeralds from the 1920’s, p. 366, 1p.
- Fall 1979, Tripache Emerald, p. 211, 1p.
- Winter 1980, Unexpected Absorption Spectrum in Natural Emeralds, p. 391, 2pp.
- Winter 1980, Mobile Bubble in A Three-Phase Emerald Inclusion, p. 392, 3pp.
Garnet
- July-Aug. 1934, Unusual Garnets, p. 125, 2pp.
- Summer 1945, Absorption Spectra of Pyrope Garnet, by Anderson, p. 232, 2pp.
- Summer 1947, Distinction between garnet and corundum, p. 435, 1p.
- Fall 1947, The Garnet. Past and Present, p. 465, 3pp.
- Spring 1948, Pyrandine, A New Name For An Old Garnet, by Anderson, p. 27, 1p.
- Winter 1950, Garnet produced from Madagascar, p. 378, 2pp.
- Summer 1953, Demantoid, by Ehrmann, p. 317, 1p.
- Summer 1954, Third find of rhodolite garnet; discovered in Greenland by John Sinkankas, p. 63, 1p.
- Fall 1960, A 19.65 ct. hessonite garnet (showing absorption spectrum), p. 72, 1p.
- Fall 1960, Cat's-eye demantoid, p. 92, 1p.
- Fall 1962, A ruby red 16 ct. chrome pyrope (showing absorption spectrum), p. 339, 1p.
- Spring 1963, Pink Grossularite Garnet, p. 23, 2pp.
- Summer 1963, Massive grossularite from S. Africa, by Webster, p. 35, 4pp.
- Summer 1966, Hydrogrossularite garnet from the Transvaal, p. 49, 9pp.
- Fall 1966, p. 74, 4pp.
- Spring 1968, A ruby red 4.27 ct. chrome pyrope, p. 279, 1p.
- Winter 1968, Transparent green grossularite, p. 375, 1p.
- Spring 1969, Tanzanian garnets, p. 15, 2pp.
- Summer 1969, Emerald-green grossularite garnet, p. 58, 1p.
- Summer 1969, A 2-phase inclusion in garnet (first seen), p. 67, 2pp.
- Winter 1969, A fine 6 ct. demantoid garnet showing horsetail inclusions, p. 121, 2pp.
- Spring 1970, New transparent green grossularite inclusions, p. 151, 2pp.
- Spring 1970, Alexandrite-like garnet from Tanzania, p. 162, 1p.
- Summer 1970, A rare Alexandrite Garnet from Tanzania, p. 174, 4pp.
- Summer 1970, Spessartite garnet inclusions, p. 189, 1p.
- Summer 1970, Spessartite absorption spectrum, p. 197, 2pp.
- Summer 1970, Grossularite garnet inclusions, p. 196, 2pp.
- Fall 1970, Testing demantoid with ultra-violet light, p. 226, 2pp.
- Fall 1970, New transparent colorless grossularite from Tanzania, p. 227, 3pp.
- Fall 1970, Alexandrite garnet from Norway, p. 229, 1p.
- Fall 1971, A massive hydrogrossular garnet cut in cabochon (one end pink, the other end green) (showing absorption spectrum), p. 354, 3pp.
- Summer 1972, Two unusual rhodolite property variations, p. 40, 1p.
- Spring 1973, A typical demantoid inclusion, p. 150, 1p.
- Summer 1974, Green grossularite garnets, "tsavorites" on the Kenya-Tanzania border, p. 290, 6pp.
- Summer 1974, Composition of "tsavorites" from Kenya and Tanzania, by Switzer, p. 296, 2pp.
- Fall 1974, Jewelry repair involving garnet and glass doublets, dangerous, p. 344, 2pp.
- Fall 1974, Some unusual inclusions in hessonite and rhodolite, p. 349, 2pp.
- Winter 1978, Blue to Red Colour Changing Garnet from East Africa, p. 122, 2pp.
- Winter 1978, Demantoid garnet from Korea; Alexandrite garnet from East Africa, p. 123, 3pp.
- Summer 1979, Colorless and Green Grossularite from Tanzania, by Pieter Muije, p. 162, 12pp.
- Fall 1979, Unusual Gem Garnets of East Africa, p. 218, 2pp.
Jade
- March-April 1934, Jadeite thought found in America (Oregon), p. 54, 1p.
- May-June 1934, Jade, p. 80, 3pp.
- May-June 1934, Red Jade, by M. Ehrmann, p. 84, 1p.
- Fall 1944, Nephrite found in Lander, Wyo., in 1936, p. 170, 1p.
- Fall 1948, Jade Carving in China, p. 82, 5pp.
- Spring 1950, Jadeite and nephrite found in Calif., p. 289, 1p.
- Summer 1951, Jadeite and nephrite found in Calif., and artifacts, p. 76, 3pp.
- Spring 1952, Jade in Mexico, p. 147, 5pp.
- Summer 1954, The Nature of Jade, p. 38, 9pp.
- Fall 1956, Jadeite from San Benito County, Calif., p. 331, 4pp.
- Fall 1960, Jade Cutting Today, p. 81, 9pp.
- Winter 1964, "Pigeon eye" nephrite from Wyoming (shows chatoyant spots), p. 251, 2pp.
- Summer 1966, Taiwan jade (nephrite), p. 62, 1p.
- Spring 1976, Jade, China's Contribution to Fine Art, by A. Alexander, p. 145, 8pp.
- Fall 1979, Clarification of Composition of Maw Sit Sit, p. 217, 2p.
- Summer 1980, Australia Likely To Be Major Supplier of Jade, by J. Stone, p. 331, 1p.
Jade - gemology
- Summer 1943, So-called "Mexican jade" is calcite, p. 87, 1p.
- Winter 1955, Cat's-eye nephrite, p. 238, 1p.
- Spring 1958, Jadeite triplets, p. 134, 3pp.
- Winter 1961, Jadeite "Yunnan Jade" from Burma (showing absorption spectrum), p. 242, 2pp.
- Spring 1962, Rare gray-blue jadeite, p. 283, 1p.
- Winter 1963, Faded dyed jadeite, p. 100, 2pp.
- Summer 1964, Stable color in dyed jadeite, p. 181, 1p.
- Winter 1965, Dyed nephrite first seen at the GIA, p. 363, 2pp.
- Winter 1965, A new type of jadeite triplet (two pieces of jadeite, green coloring in center), p. 369, 2pp.
- Winter 1967, Dyed jadeite, p. 245, 1p.
- Summer 1969, Glass jade imitation, p. 58, 2pp.
- Winter 1970, Glass-like jade imitation, p. 249, 3pp.
- Summer 1971, Dyed lavender jadeite, p. 323, 2pp.
- Summer 1972, Jade substitute (glass), p. 44, 2pp.
- Summer 1972, Jade-like minerals, p. 50, 3pp.
- Fall 1972, Distinguishing burial jade from burned jade not yet possible, p. 83, 2pp.
- Fall 1972, Paraffin-treated jade, p. 84, 2pp.
- Fall 1972, Blue jade-like material (tremolite), p. 91, 2pp.
- Fall 1972, A cat's-eye yellow jadeite, p. 93, 1p.
- Winter 1972, Testing dyed antique replicas of jade, p. 112, 1p.
- Winter 1972, Jade cat's-eye (?), p. 113, 1p.
- Spring 1973, Jade imitations in devitrified fibrous glass (meta jade, Imori stone), p. 134, 2pp.
- Summer 1973, Durability of jadeite vs. nephrite, p. 175, 2pp.
- Fall 1973, Treated lavender jadeite, p. 214, 2pp.
- Fall 1974, Unevenly dyed jadeite, p. 350, 1p.
- Spring 1975, A "meta jade" glass with spectrum of natural jadeite, p. 27, 2pp.
- Fall 1975 Rare, nearly transparent, light gray faceted jadeite, p. 73, 2pp.
Lapis lazuli
- Spring 1936, The specific gravity of lapis lazuli, p. 8, 1p.
- Summer 1941, Colorado Lapis Lazuli, p. 154, 3pp.
- Fall 1954, A New Substitute for Lapis Lazuli, by Anderson, p. 88, 2pp.
- Summer 1962, A lapis lazuli test, p. 315, 1p.
- Spring 1963, Translucent lapis lazuli (showing absorption spectrum), p. 20, 1p.
- Summer 1963, Testing stained lapis lazuli, p. 44, 1p.
- Fall 1965, Notes on lapis lazuli and its treatment, p. 337, 2pp.
- Summer 1967, Dyed lapis lazuli, p. 180, 2pp.
- Spring 1968, Dyed waxed lapis lazuli, p. 278, 1p.
- Summer 1970, A beautiful Pietre Dure (Italian inlay) lapis lazuli, p. 188, 1p.
- Fall 1974, Imitation lapis lazuli, p. 327, 4pp.
- Fall 1976, Non-Single-Crystal Synthetics (synthetic Gilson lapis lazuli), by Nassau, p. 194, 5pp.
Opal
- Winter 1937, The Australian Black Opal, p. 137, 2pp.
- Winter 1938, Opal (with glossary of varieties), by Briggs, p. 201, 2pp.
- Winter 1946, New Australian Opal Fields, p. 364, 3pp.
- Fall 1947, Mexican Treated Black Opal, p. 475, 2pp.
- Fall 1950, Opal Industry of Australia, past and present, p. 334, 8pp.
- Winter 1950, British Collector Now Owns the Pandora Opal, p. 381, 1p.
- Spring 1953, Mexican Opal, by Foshag, p. 278, 5pp.
- Fall 1959, Opal of Australia, p. 323, 11pp.
- Winter 1965, The Black Opals of Lightning Ridge, p. 355, 4pp.
- Fall 1971, The Story of the White Cliffs Opal Field, Australia, p. 334, 10pp.
- Fall 1971, A carved 288.25 ct. Mexican opal, p. 357, 2pp.
- Fall 1972, Opal with play-of-colors found in Arizona, p. 91, 1p.
- Fall 1976, Opalescent Sandstone from Louisiana, p. 201, 1p.
- Fall 1979, COOBER PEDY - The Opal Town, by J. Stone, p. 213, 4pp.
- Spring 1980, GEMLURE, Opal: Smolder of Fortune?, by Cheri Lesh, p. 283, 6pp.
Opal gemology
- Nov.-Dec. 1935, New type of opal doublet, p. 344, 1p.
- Fall 1948, Variation in opal properties per locality, p. 90, 2pp.
- Winter 1953, Cause of Color in Opal, by Leechman, p. 361, 4pp.
- Spring 1954, The Structure and Optical Behavior of Iridescent Opal, p. 21, 6pp.
- Spring 1955, Lattice Structure in Precious Opal, by Leechman, p. 154, 2pp.
- Fall 1959, Treated black opal, p. 343, 1p.
- Fall 1962, Treated black opal, p. 336, 3pp. (See also Winter 1962, p. 380, 1p.)
- Spring 1964, Treated Black Opal, by Gübelin, p. 157, 3pp.
- Fall 1964, Opal triplet; black onyx backed, quartz topped, p. 221, 2pp.
- Winter 1964, Treated black opal and its patchy iridescence, p. 242, 2pp.
- Summer 1965, The Origin of Color in Opal, p. 291, 8pp.
- Summer 1966, A cat's-eye opal, p. 60, 2pp.
- Spring 1967, Oolitic opal, p. 149, 2pp.
- Summer 1967, An opal that loses its color when water soaked, p. 179, 2pp.
- Fall 1967, Formation of Precious Opal, p. 194, 5pp.
- Fall 1967, Oolitic opal, p. 199, 1p.
- Fall 1967, Opal substitutes (crushed opal in resin), p. 219, 3pp.
- Spring 1968, Opal and rock crystal doublets, p. 282, 2pp.
- Fall 1968, Rare cat's-eye opals, p. 342, 2pp.
- Winter 1968, Odd leaf-like inclusion in an opal, p. 380, 2pp.
- Spring 1969, Opal imitation, p. 21, 1p.
- Spring 1969, Some unusual opal inclusions, p. 26, 3pp.
- Summer 1969, Chrysocolla opal (first seen), p. 67, 2pp.
- Fall 1969, Smoke-treated opal, p. 91, 2pp.
- Fall 1969, Some unusual opals, p. 97, 2pp.
- Winter 1969, Artificially colored opals, p. 117, 1p.
- Winter 1969, An unusual sugar-and-acid-treated opal, p. 127, 1p.
- Spring 1970, A porous white opal impregnated with black plastic, p. 148, 1p.
- Fall 1970, A very porous white opal, p. 231, 2pp.
- Winter 1970, Stained black opal, p. 249, 3pp.
- Spring 1971, Nomenclature of black opal, p. 284, 2pp.
- Summer 1971, A new opal, treated black, with very low properties, p. 317, 2pp.
- Summer 1971, A very unusual opal, p. 321, 2pp.
- Fall 1971, Black-dyed oolitic opal, p. 351, 2pp.
- Winter 1971, Natural black oolitic opal, p. 382, 1p.
- Spring 1972, New synthetic opal from Gilson, p. 18, 1p.
- Spring 1972, Sugar-treated black opal, p. 21, 1p.
- Spring 1972, Easily testing a mounted opal doublet, p. 24, 3pp.
- Summer 1972, Transparency in black opals, p. 40, 2pp.
- Summer 1972, An opal cabochon in which the chipped back was epoxy filled, p. 43, 2pp.
- Fall 1972, High transparency in some black opals, p. 88, 2pp.
- Winter 1972, Sugar-treated black opal, demonstration, p. 117, 1p.
- Summer 1973, Gilson synthetic opal, p. 175, 3pp.
- Winter 1973, A new opal doublet to look like boulder opal, p. 233, 1p.
- Summer 1974, Treating Matrix Opal, p. 306, 3pp.
- Summer 1974, Synthetic opal, p. 309, 3pp.
- Fall 1974, Imitation opal on matrix, p. 331, 2pp.
- Fall 1974, Gilson synthetic opal (black), p. 343, 1p.
- Winter 1974, An excellent opal imitation, p. 362, 3pp.
- Winter 1974, A black opal doublet, with uneven joint, p. 364, 2pp.
- Spring 1975, A strange, dried-up opal, p. 26, 1p.
- Summer 1976, Crystal inclusions in Mexican opal, p. 174, 1p.
- Summer 1976, The Slocum imitation opal put on the market, p. 185, 2pp.
- Fall 1976, Non-Single-Crystal Synthetic (synthetic Gilson opal), by Nassau, p. 194, 5pp.
- Fall 1976, A ball-like inclusion and curved striae in a botryoidal opal, p. 213, 2pp.
- Winter 1976, Opal doublet to imitate boulder opal, p. 115, 2pp.
- Winter 1976, Gilson synthetic opal, p. 126, 1p.
- Winter 1977, Gilson black opal triplet, p. 236, 1p.
- Winter 1977, Observations on the Slocum Stone, p. 252, 5pp. (See also Summer 1977, p. 301, 1p. and p. 308, 1p.)
- Summer 1978, Plastic Impregnated Gem Opal, by D. Vincent Manson, p. 49, 9p.
- Fall 1979, Plastic Impregnated Opal and Plastic Opal, p. 219, 1p.
Paste
- Fall 1949, Goldstone or Aventurine Glass, by Webster, p. 207, 3pp.
- Summer 1957, Glass as a Diamond Substitute, p. 62, 1p.
- Summer 1959, A yellow-green faceted glass with a refractive index above 1.80, p. 292, 1p.
- Winter 1961, Purpurine glass in Faberge (showing absorption spectrum), p. 244, 2pp.
- Fall 1962, Cat's-eye glass, p. 338, 1p.
- Summer 1965, Alexandrite colors in glass, p. 315, 2pp.
- Summer 1968, Identifying glass vs. textite, p. 314, 2pp.
- Spring 1971, An unusual crystal type glass with dendritic inclusions, p. 279, 2pp.
- Summer 1971, Lacy stringers of bubbles in glass, p. 318, 1p.
- Summer 1971, Crystalites in glass, p. 323, 2pp.
- Spring 1972, Crystalites in glass, p. 23, 1p.
- Fall 1972, Aventurine glass with specular hematite inclusions, p. 87, 2pp.
- Winter 1972, Fine cat's-eye glass with milk and honey effect, p. 108, 1p.
- Spring 1973, Jade imitation in devitrified fibrous glass, "meta jade" or "Imori stone," p. 134, 2pp.
- Spring 1973, "Meta jade" is devitrified fibrous glass, p. 146, 1p.
- Summer 1973, "Meta jade" is devitrified fibrous glass (warm to touch), p. 177, 2pp.
- Fall 1973, Alexandrite-like glass, p. 203, 2pp.
- Fall 1974, Crystal groups in sheaves in glass, p. 346, 2pp.
- Summer 1975, The "mood stone"–quartz top and epoxy back in closed setting, p. 59, 3pp.
- Summer 1975, Black "meta jade" or "Imori stone," p. 61, 2pp.
- Spring 1976, Opal-like glass, p. 155, 1p.
Pearls
- Summer 1936, Cultured Pearls, p. 27, 3pp.
- Spring 1938, The Bombay Pearl Market, p. 159, 2pp.
- Fall 1938, Abalones and their pearls, p. 187, 2pp.
- Spring 1942, Natural Pearls, p. 9, 4pp.
- Summer 1943, The Pearls of Lower California and Mexico, p. 93, 2pp.
- Summer 1947, The Present Status of the Japanese Cultured Pearl Industry, p. 417, 4pp. (See also Winter 1947, p. 495, 1p.)
- Winter 1947, "Cave Pearls" or pisolites, p. 503, 1p.
- Summer 1948, Pearl Fishing in the Persian Gulf, by Alexander, p. 38, 4pp.
- Spring 1949, Kokichi Mikimoto, Cultured Pearl Czar, by Foshag, p. 162, 1p.
- Winter 1950, Australian Pearl Divers, p. 379, 1p.
- Fall 1952, 1000-year-old pearl found in Yucatan excavations, p. 227, 1p.
- Fall 1960, A 48.12 grain pearl found in Illinois in 1960, p. 67, 1p.
- Winter 1961, Mr. S. Uda (originator of Biwa Pearls) speaks, p. 249, 2pp.
- Spring 1962, Freshwater Cultured Pearls, by Crowningshield, p. 259, 15pp.
- Fall 1963, Tridacna pearls (giant clams) show flame pattern on surface, p. 89, 2pp.
- Winter 1963, Red abalone pearls, p. 102, 1p.
- Summer 1964, The Pink Pearls of Pakistan, p. 175, 6pp.
- Fall 1965, A pair of 16mm abalone pearls (green and red), p. 333, 1p.
- Summer 1967, Cultured Pearl Farming and Marketing, p. 162, 11pp.
- Fall 1980, Gemlure: Born in the Depths: The Perfect Pearl, by Cheri Lesh, p. 356, 9pp.
Pearl gemology
- March-April 1934, The Scientist's View of Cultured Pearls, p. 43, 2pp.
- July-Aug. 1934, Cultured pearls said not genuine, p. 110, 3pp.
- Sept.-Oct. 1934, Pearl Tests, by Shipley, p. 136, 1p.
- Spring 1941, Pearl Colors, by Juergens, p. 139, 2pp.
- Fall 1941, Natural and Cultured Pearls (their differences), by Alexander, p. 169, 4pp.
- Winter 1946, Radiographic Examination of Pearls, p. 359, 5pp.
- Winter 1946, New Pearl Essence Factories in Maine, p. 377, 1p.
- Spring 1947, Pearl Identification by X-ray Diffraction, p. 387, 5pp.
- Fall 1947, The GIA Pearlscope, by Shipley, p. 462, 3pp.
- Spring 1950, Notes on Pearl Imitations, p. 288, 1p.
- Fall 1950, Reverse Pattern on Half-Drilled Black Pearls, p. 353, 1p.
- Fall 1950, Artificial Pearls Made By New Process, p. 353, 1p.
- Winter 1951, Gem Trade Lab Gets New Pearl X-ray Machine, by Benson, p. 107, 6pp.
- Winter 1951, Testing Drilled Pearls With Ultraviolet Light, p. 367, 1p.
- Winter 1954, Weight Estimation of Pearls (chart and formula), p. 99, 8pp. (See also Spring 1955, p. 157, 1p.)
- Winter 1954, Kokichi Mikimoto Dies (his history in the pearl industry), p. 108, 15pp.
- Fall 1955, Electron Microscope Sees Aragonite Crystals in Cultured Pearls, p. 215, 4pp. (See also Winter 1955, p. 254, 1p.)
- Spring 1958, Imitation Pearls, by Webster, p. 144, 4pp.
- Summer 1959, Clam pearls, p. 293, 1p.
- Fall 1959, Coque de perle (center of nautilus), p. 342, 2pp.
- Winter 1959, A natural pearl with black spot in a circle, p. 357, 1p.
- Spring 1960, A 17 x 14mm dyed black cultured pearl, p. 10, 1p.
- Summer 1960, Testing Black Pearls (natural and dyed), by Benson, p. 53, 6pp.
- Fall 1960, More on testing black pearls (natural and dyed), by Benson, p. 75, 6pp.
- Winter 1960, Testing rose pearls (natural and dyed), p. 114, 1p.
- Spring 1961, An 11.8mm pearl, violet-rose by night, and green by day, p. 144, 1p.
- Fall 1961, Mabe pearls, p. 216, 4pp.
- Fall 1961, A huge abalone pearl, p. 220, 2pp.
- Fall 1961, Reaction of pearls to vinegar, colognes, etc., p. 222, 2pp.
- Winter 1961, Spectrum recognition of natural (and dyed) black pearls, p. 252, 4pp.
- Summer 1963, Coque de perle (center of nautilus) earrings, p. 40, 1p.
- Fall 1963, Testing black pearls, p. 88, 1p.
- Winter 1963, Bleached and dyed cultured pearls, p. 99, 2pp.
- Winter 1963, Red abalone pearls, p. 102, 1p.
- Winter 1964, Cutting a pearl in half to make a pair, p. 247, 2pp.
- Spring 1965, Mallorca and Imitation Pearls, by Pough, p. 273, 8pp.
- Spring 1965, Surface conditions on conch pearls, p. 281, 2pp.
- Spring 1966, A pearl, half black and half white, p. 24, 2pp.
- Spring 1967, Irradiated cultured pearls, p. 153, 2pp.
- Winter 1967, Hammered effect on pearl surfaces, p. 251, 2pp.
- Fall 1969, Tissue-graft pearls, p. 91, 2pp.
- Spring 1970, Flame like pattern on conch pearls, p. 151, 2pp.
- Spring 1970, Black cultured pearls, p. 156, 2pp.
- Fall 1970, Gaps in cultured pearl nacreous layers, p. 230, 3pp.
- Summer 1971, Structure of clam pearls, p. 315, 2pp.
- Spring 1972, Cultured pearl ring found, outer layer worn, p. 21, 1p.
- Summer 1972, A blue mabe pearl (inside filled with blue pitch-like substance), p. 41, 1p.
- Summer 1973, Canned oysters with cultured pearls, p. 188, 2pp.
- Winter 1973, An egg-shaped clear yellow conch pearl, p. 235, 1p.
- Spring 1975, Pink conch pearls in a necklace, p. 14, 1p.
- Fall 1977, Untreated black cultured pearls, p. 348, 1p. (See also *Winter 1978, p. 365, 1p.)
- Winter 1977, Black Cultured Pearls, Natural Color, p. 365, 1p.
- Spring 1978, Differentiation of Black Pearls, by Hiroshi Komatsu and Shigeru Akamatsu, p. 7, 9pp.
- Spring 1979, Biwa pearls, Black pearls and imitation pearls, p. 147, 3pp.
Peridot
- Summer 1938, Hawaiian Peridot, p. 162, 1p.
- Spring 1960, A four-rayed star peridot, p. 3, 1p.
- Winter 1962, Unusual inclusions in peridot, p. 376, 2pp.
- Summer 1968, Peridot found in North Carolina, p. 311, 2pp.
- Winter 1969, Cat's-eye peridot, p. 129, 1p.
- Spring 1970, Star peridot (4-rayed and 6-rayed), p. 150, 1p.
- Spring 1975, Heat and chemical sensitivity of peridot, p. 14, 2pp.
- Summer 1980, Diopside inclusions in Peridot, p. 332, 2pp.
- Winter 1939, Quartz, by Braggs, p. 58, 1p.
- Fall 1949, Aventurine Quartz, by Webster, p. 208, 4pp.
- Winter 1949, Amethyst color induced in rock crystal via cyclotron, p. 255, 1p.
- Fall 1950, Quartz from Montezuma, Brazil, turns green upon heating, p. 346, 1p.
- Winter 1950, Synthesis of Quartz Crystals, p. 359, 3pp.
- Spring 1952, The Synthesis of Quartz, p. 151, 3pp.
- Winter 1954, X-ray study of fibrous chalcedony (iridescent agate), p. 106, 3pp.
- Fall 1957, "Green" Amethyst From Four Peaks, Arizona, by Sinkankas, p. 88, 8pp.
- Summer 1960, A citrine triplet, p. 62, 1p.
- Spring 1961, Worm-like inclusions, that grow, in chalcedony, p. 151, 1p.
- Summer 1962, Quartz triplets (showing absorption spectrum), p. 307, 2pp.
- Summer 1963, Quartz cat's-eyes, p. 43, 1p.
- Winter 1963, A very rare star amethyst, p. 101, 2pp.
- Summer 1964, Reported excellent chrysoprase of Australia proves to be dyed chalcedony, p. 180, 1p.
- Fall 1964, Reported excellent chrysoprase of Australia proves to be dyed chalcedony-nomenclature, p. 216, 1p.
- Fall 1965, Marlborough Creek Chrysoprase of Australia, p. 323, 9pp.
- Winter 1966, Dyed moss in agate, p. 118, 2pp.
- Summer 1968, A 6-rayed star quartz cabochon with cat's-eye on one side, p. 313, 2pp.
- Summer 1968, Aventurine quartz inclusion, p. 315, 1p.
- Fall 1968, Spherulitic inclusions in chalcedony, p. 344, 2pp.
- Winter 1969, "Chrome chrysoprase"-jadeite-like, p. 121, 2pp.
- Winter 1969, Synthetic smoky quartz, blue quartz, and green quartz from Russia, p. 129, 3pp.
- Spring 1970, Chrome aventurine quartz (showing absorption spectrum), p. 158, 1p.
- Summer 1970, White star quartz, p. 194, 2pp.
- Summer 1971, Inclusions in amethyst that look like space capsules, p. 322, 2pp.
- Fall 1971, Dyed chalcedony-excellent jade imitation (showing absorption spectrum), p. 350, 1p.
- Spring 1972, Synthetic quartz from Ohio, p. 8, 2pp.
- Summer 1972, A 20-inch high carved rock crystal vase, p. 43, 1p.
- Fall 1972, An odd 6-rayed star quartz, p. 89, 2pp.
- Spring 1973, Moveable bubbles in quartz crystals, p. 150, 2pp.
- Summer 1973, Fire agate, p. 177, 1p.
- Summer 1973, Petrified palm root, p. 182, 2pp.
- Fall 1973, Fade test on Gamma-irradiated quartz, p. 212, 2pp.
- Winter 1973, A rock crystal brilliant with tourmaline needle crystal running from culet to center of table, creates many reflections, p. 235, 2pp.
- Winter 1973, Greenish-yellow citrine, gamma-irradiated (test available), p. 236, 2pp.
- Spring 1976, Jade-like quartz, p. 155, 2pp.
- Winter 1977, Imitation bloodstone, p. 234, 1p.
- Winter 1977, Star Quartz and Banded Synthetic Quartz, p. 310, 3pp.
- Winter 1977, Another Multi-Star Quartz, p. 364, 2pp.
- Winter 1977, Synthetic Amethyst from Russia, p. 365, 2pp.
- Spring 1978, Inclusions in Agate and Their Origins and Significance, By Roger K. Pabian, p. 16, 12pp.
- Winter 1978, Star Quartz, p. 364, 2pp.
- Winter 1978, Synthetic Amethyst, p. 365, 2pp.
- Spring 1979, Fire Agates of Deer Creek, Arizona, by James L. Sweaney, p. 130, 13pp.
- Spring 1979, Synthetic Amethyst, currently no test for a flawless amethyst, p. 151, 3pp.
- Summer 1979, Quartz: Myth and Magic, Science and Sales, by Cheri Lesh, p. 174, 5pp.
- Summer 1980, Citrine-Amethyst Quartz - A Gemologically New Material, by John I. Koivula, p. 290, 4pp.
- Winter 1980, More News On Citrine-Amethyst Quartz, by John I. Koivula, p. 409, 1p.
Ruby
- March-April 1935, Dichroic Colors in Ruby, p. 222, 1p.
- Spring 1936, The Ruby Mines of Burma, p. 3, 4pp.
- Spring 1940, Differences Between Burmese and Siamese Rubies, by Gübelin, p. 69, 4pp.
- Winter 1940, Characteristics of Rubies from Ceylon, by Gübelin, p. 121, 4pp.
- Fall 1956, The Ruby Mines of Mogok, Burma, p. 335, 8pp.
- Summer 1962, Rubies from Kenya (new deposit), p. 316, 2pp.
- Winter 1962, Repeated twinning lines in both synthetic and natural rubies, p. 378, 2pp.
- Winter 1962, Wax-treated rubies, p. 382, 1p.
- Summer 1963, A star ruby with a bull's-eye effect, p. 40, 2pp.
- Winter 1965, The Rosser Reeves Ruby, 138.7 cts., largest gem star ruby recorded, p. 367, 1p.
- Spring 1967, Very unusual absorption spectrum seen in Tanzanian ruby, p. 138, 2pp.
- Summer 1968, A natural ruby with unusual character, p. 311, 2pp.
- Spring 1969, Notable Rubies in the Crown Jewels of Iran, by Meen, p. 10, 2pp.
- Spring 1971, A 1795 ct. Mysore-type cabochon ruby, p. 278, 2pp.
- Summer 1971, The lovely roiled structure of fine Burmese rubies, p. 318, 2pp.
- Summer 1972, A ruby with epoxy filling in chipped area, p. 38, 2pp.
- Winter 1973, Unusual 12-rayed star ruby with two meeting points, p. 254, 1p.
- Summer 1974, A very rare liquid and gas inclusion in a natural ruby, p. 313, 2pp.
- Fall 1974, A first look at rubies from Kenya, p. 334, 3pp.
- Spring 1975, A rock showing a mixture of ruby and green tourmaline, p. 27, 1p.
- Spring 1975, A carved rock of chrome green zoisite and ruby, p. 28, 1p.
- Summer 1976, Unusual liquid and gas inclusions in ruby, p. 170, 2pp.
- Fall 1979, Australia Adds Rubies To Its Mineral Riches, by Rex Scarbary, p. 220, 3pp.
Synthetic ruby
- Spring 1937, Unusual Inclusions in Synthetic Ruby, p. 91, 2pp.
- Summer 1949, Reconstructed Rubies in Rod and Faceted Form, by Alexander, p. 184, 2pp.
- Summer 1949, Reconstructed Rubies, by Gübelin, p. 186, 3pp.
- Summer 1949, Reconstructed Rubies, by Anderson, p. 187, 2pp.
- Spring 1951, Reconstructed Rubies Seen in New York Lab, p. 29, 1p.
- Spring 1952, Many Reconstructed Rubies Found to be Synthetic Corundum, by L. Benson, p. 139, 7pp.
- Winter 1952, Second largest synthetic star Linde ruby, 82.93 cts. (largest know, 109.25 cts.), p. 259, 1p.
- Winter 1960, Ruby With Synthetic Overgrowth, Gübelin, p. 105, 9pp.
- Summer 1961, Crackled synthetic ruby, p. 181, 1p.
- Winter 1962, Repeated twinning lines in both synthetic and natural ruby, p. 378, 2pp.
- Fall 1964, Crackled synthetic ruby, p. 215, 2pp.
- Winter 1964, Parting lines in synthetic ruby, p. 251, 1p.
- Spring 1965, Flux-fusion synthetic ruby, p. 270, 3pp.
- Fall 1965, Synthetic star ruby from between 1947-1952, p. 331, 2pp.
- Winter 1965, Solution-grown synthetic rubies, p. 361, 2pp.
- Spring 1966, Solution-grown synthetic rubies, p. 20, 2pp.
- Spring 1966, Flux-fusion synthetic rubies, p. 24, 2pp.
- Fall 1966, Solution-grown synthetic rubies, p. 68, 4pp.
- Winter 1966, Chatham synthetic rubies, p. 110, 3pp.
- Winter 1966, Flux-grown synthetic rubies, p. 121, 2pp.
- Spring 1967, Flux-grown synthetic rubies, p. 141, 3pp.
- Summer 1967, Flux-fusion rubies, p. 188, 2pp.
- Fall 1967, Flux-fusion rubies, p. 205, 2pp.
- Spring 1969, Kashan Flux Grown Rubies, p. 30, 5pp.
- Winter 1969, Flux-grown synthetic rubies, p. 112, 6pp.
- Fall 1970, Hexagonal platelets in Chatham flux-melt rubies, p. 234, 2pp.
- Spring 1971, Synthetic rubies treated to look natural, p. 275, 2pp.
- Summer 1971, A new Kashan ruby (a crystal aggregate), p. 316, 2pp.
- Summer 1971, An unusual flux-fusion synthetic ruby, p. 320, 2pp.
- Winter 1971, Crackled synthetic ruby; bubbles in synthetic ruby, p. 377, 1p.
- Summer 1972, A new flux synthetic ruby (uses Verneuil ruby seed), p. 55, 1p.
- Winter 1972, A perfectly good fingerprint inclusion in a Verneuil synthetic ruby, p. 115, 1p.
- Spring 1973, Interesting Verneuil synthetic ruby inclusion, p. 146, 2pp.
- Summer 1973, Crackled synthetic ruby, p. 186, 2pp.
- Spring 1975, Quench-crackled synthetic rubies, p. 16, 3pp.
- Spring 1975, Flux-grown synthetic rubies (beware), p. 17, 2pp.
- Fall 1975, Flux-grown and flame-fusion synthetic rubies, p. 89, 2pp.
- Winter 1976, Flux-grown synthetic rubies, p. 126, 2pp.
- Summer 1976, A flux synthetic ruby on a flame-fusion synthetic seed, p. 174, 2pp.
- Fall 1979, Synthetic Rubies, p. 206, 3pp.
Sapphire
- March-April 1934, Sapphire (the 543 ct. Star of India pictured, p. 48), p. 47, 2pp.
- March-April 1934, Straight Striae in Synthetic Sapphire, p. 53, 2pp.
- Nov.-Dec. 1934, Sapphires and Sapphire Ball Bearings (synthetic and natural), p. 173, 2pp.
- Summer 1936, A Substitute for Star Sapphires, p. 47, 1p.
- Fall 1942, Local Peculiarities of Sapphires, by Gübelin, p. 34, 6pp.
- Fall 1951, Large sapphires from Australia carved into presidents' images by Kazanjian Bros., p. 101, 2pp.
- Winter 1951, Australian sapphire fields not fully exploited, p. 125, 4pp.
- Winter 1952, The Stuart Sapphire, p. 251, 1p.; The St. Edwards Sapphire, p. 254, 1p.
- Fall 1956, The Yogo Sapphire Mine, Montana, p. 323, 8pp.
- Summer 1959, Unusual absorption spectrum in sapphire; a flawless sapphire spectrum, p. 294, 1p.
- Spring 1960, An alexandrite-like natural sapphire, p. 10, 2pp.
- Summer 1962, A star sapphire-blue by day, amethystine violet by night, p. 316, 2pp.
- Fall 1962, A 2-½ •lb. sapphire found in Ceylon (largest recorded from Ceylon), p. 351, 1p.
- Summer 1965, A natural sapphire that had a greenish-white fluorescence similar to that of synthetic sapphire, p. 309, 2pp.
- Fall 1965, A 10 ct. sapphire from Montana, p. 331, 2pp.
- Spring 1967, World's largest star sapphire (63,000 cts. or 27.78 lbs.) found in Burma, p. 158, 1p.
- Summer 1967, The Anakie Sapphire Fields, p. 173, 7pp.
- Spring 1969, Notable Sapphires in the Crown Jewels of Iran, by Meen, p. 13, 2pp.
- Spring 1969, Montana sapphire doublet, p. 24, 2pp.
- Winter 1969, An 18 ct. sapphire (natural) which fluoresces like a synthetic sapphire, p. 120, 3pp.
- Spring 1970, Sapphires cause new mining boom in Australia, p. 166, 4pp.
- Spring 1971, A fluorescent natural sapphire, p. 274, 2pp.
- Spring 1971, A 2½ lb. (5600 ct.) cabochon sapphire, p. 278, 1p.
- Fall 1971, Dyed blue sapphires, p. 349, 1p.
- Winter 1971, Glass-like swirls in a natural sapphire, p. 376, 1p.
- Winter 1971, Color zoning gives double appearance, p. 384, 2pp.
- Spring 1972, 3-phase inclusion in purple sapphire, p. 11, 1p.
- Fall 1972, Unusual natural sapphire that fluoresces like a synthetic sapphire and shows no absorption spectrum, p. 92, 2pp.
- Winter 1973, Heavily oiled sapphires fluoresce like synthetic sapphires, p. 236, 1p.
- Spring 1975, Unusual natural sapphire that fluoresces milky-white like a synthetic sapphire and shows no absorption spectrum, p. 27, 1p.
- Spring 1975, A 12.54 ct. sapphire, largest reported from Montana, p. 27, 1p.
- Spring 1976, An imitation sapphire crystal group made of faceted synthetic sapphire, p. 141, 1p.
- Spring 1976, A natural sapphire with curved inclusions, p. 155, 1p.
- Spring 1976, Carroll Chatham says that new flux-grown synthetic sapphire will be marketed soon, p. 155, 1p.
- Summer 1976, Dendritic inclusions in synthetic sapphire, p. 171, 1p.
- Fall 1976, Inclusion in sapphire from Yogo Gulch, Montana, p. 200, 1p.
- Spring 1979, Color Treated Blue Sapphires, p. 147, 1p.
- Winter 1980, Mobile Three-Phase Inclusion in a Sapphire, p. 393, 4pp.
- Winter 1980, Brief Notes On Chatham Flux Sapphires, p. 410, 2pp.
Spinel
- Spring 1936, Blue-green Spinels (with R.I. of 1.73 and S.G. of 3.65), by Anderson, p. 8, 1p.
- Summer 1938, Toughness of Spinel, p. 174, 1p.
- Fall 1943, Identifying Synthetic Spinel, p. 103, 1p.
- Summer 1944, Black Star Spinel, p. 150, 4pp.
- Summer 1945, Absorption Spectra of Red Spinel, by Anderson, p. 232, 2pp.
- Summer 1947, Synthetic Spinel, by Gübelin, p. 421, 4pp.
- Summer 1950, Are Red Synthetic Spinels Available?, by Gübelin, p. 307, 4pp.
- Winter 1950, Synthetic Red Spinel, by Crowningshield, p. 362, 7pp.
- Winter 1952, Synthetic Red Spinel, by Gübelin, p. 236, 12pp.
- Winter 1952, The Black Prince's Ruby (actually spinel), p. 251, 3pp.
- Summer 1953, More on Synthetic Red Spinel, by Eppler, p. 306, 1p.
- Summer 1954, An interesting yellow-green synthetic spinel, p. 56, 2pp.
- Summer 1955, A Four-Rayed Star Spinel, by Switzer, p. 163, 3pp.
- Summer 1957, Synthetic colorless spinel as a diamond substitute, p. 58, 1p.
- Winter 1959, A 60 ct., flawless natural red spinel, p. 360, 1p.
- Fall 1960, A 6-rayed star purple spinel, p. 71, 2pp.
- Spring 1963, Synthetic alexandrite-like spinel (showing absorption spectrum), p. 26, 1p.
- Winter 1965, Green synthetic spinel, p. 370, 2pp.
- Spring 1969, Notable Spinels in the Crown Jewels of Iran, by Meen, p. 11, 3pp.
- Spring 1970, Alexandrite-like synthetic spinel (showing absorption spectrum), p. 149, 2pp.
- Spring 1970, Silk-like inclusions in spinel, p. 152, 1p.
- Spring 1971, A lovely orange-red spinel, p. 273, 1p.
- Spring 1971, Unique inclusions in synthetic spinel, p. 273, 2pp.
- Summer 1971, Black spinel (high R.I. and hardness), p. 318, 1p.
- Fall 1971, Synthetic spinel and strontium titanate doublets, p. 346, 4pp.
- Fall 1971, Synthetic red spinel, p. 350, 2pp.
- Spring 1972, Synthetic green spinel (showing unusual absorption spectrum), p. 26, 3pp.
- Winter 1972, Red Spinel Absorption Spectrum, by Anderson, p. 100, 2pp.
- Summer 1974, A spinel with a color change, p. 314, 1p.
- Fall 1974, Black spinel, p. 345, 1p.
- Fall 1974, Light blue (aquamarine color) synthetic spinel, p. 349, 1p.
- Summer 1977, A pinkish-orange padparadscha colored synthetic spinel, p. 308, 2pp.
- Fall 1977, Layers of synthetic spinel form a cuvette, p. 329, 2pp.
- Summer 1980, Negative Crystals in Synthetic Verneuil Spinel, p. 333, 1p.
Synthetic Corundum
- Fall 1939, Lined foil back on corundum produces asterism, p. 36, 1p.
- Summer 1943, U.S. develops synthetic corundum industry, p. 88, 4pp.
- Spring 1946, Synthetic Ruby and Sapphire, by Gübelin, p. 399, 4pp.
- Fall 1947, The new "Linde Stars," ruby and sapphire, p. 452, 5pp. (See also Winter 1947, p. 503, 1p.)
- Spring 1951, Repeated twinning lines seen in synthetic corundum, p. 25, 1p.
- Fall 1952, Oriented Lines in Synthetic Corundum, by W. Plato, p. 223, 2pp.
- Summer 1957, Synthetic white colorless corundum as diamond substitute, p. 57, 2pp.
- Summer 1960, Synthetic colorless sapphire as a diamond substitute, p. 59, 2pp.
- Winter 1960, A triplet to produce a star corundum, p. 119, 2pp.
- Summer 1961, More on star sapphire doublets, p. 180, 2pp.
- Winter 1961, Synthetic alexandrite-like sapphire, p. 249, 1p.
- Spring 1962, Sintered synthetic corundum, p. 278, 1p.
- Summer 1964, Polysynthetic twinning in synthetic corundum, by Eppler, p. 169, 7pp.
- Fall 1965, Synthetic star corundum between 1947 and 1952, p. 331, 2pp.
- Summer 1967, Sintered synthetic corundum and its spectrum, p. 180, 2pp.
- Fall 1967, Flux-grown synthetic corundum, p. 206, 3pp.
- Summer 1968, Identifying yellow synthetic sapphire, p. 311, 2pp.
- Spring 1970, Hydrothermal pink sapphire, p. 156, 2pp.
- Winter 1970, Wisps in synthetic alexandrite-like corundum, p. 249, 2pp.
- Spring 1971, Star Doublets (corundum lined to produce star), p. 280, 2pp.
- Winter 1971, Doublets of natural and synthetic corundum, p. 374, 2pp.
- Spring 1972, More on doublets of natural and synthetic corundum, p. 12, 2pp.
- Summer 1972, A new synthetic (pink) corundum with angular parallel inclusions, but has bubbles, p. 39, 2pp.
- Summer 1974, Synthetic dark-green and yellow corundum, p. 299, 2pp.
- Summer 1974, A new synthetic white star corundum, p. 310, 3pp.
- Fall 1974, Strong concentric growth lines on the back of a synthetic star corundum, p. 347, 1p.
- Summer 1975, A new synthetic pink sapphire, p. 46, 2pp.
Synthetic diamond
- March-April 1935, Synthetic Diamonds, Historic and Modern, by Anderson, p. 213, 4pp.
- Winter 1938, Supposed synthetic diamonds by W. Hershey tested, p. 195, 4pp.
- Summer 1939, Comments on synthetic diamonds by W. Hershey, tested, p. 23, 2pp.
- Fall 1939, Synthetic (?) Diamonds, by Shipley, p. 43, 2pp.
- Winter 1943, Synthetic Diamond Question, Reopened in London, by Ball and Kraus, p. 114, 2pp.
- Winter 1947, Diamond Synthesis Attempted at Harvard, p. 500, 1p.
- Fall 1952, Germans try to synthesize diamonds, p. 226, 1p.
- Winter 1959, De Beers (S. Africa) Synthetic Diamonds, p. 373, 1p.
- Spring 1960, Several firms in Holland make synthetic diamonds, p. 23, 1p.
- Summer 1963, First European plant for synthetic diamonds (Ireland), p. 62, 1p.
- Winter 1963, General Electric synthetic diamonds work, p. 115, 1p.
- Winter 1966, Synthetic diamonds now from Czechoslovakia, p. 125, 1p.
- Winter 1966, Synthetic diamonds from Ireland improving, p. 125, 2pp.
- Spring 1971, MEGA synthetic diamonds produced in Utah, p. 292, 4pp.
- Summer 1971, General Electric's cuttable synthetic diamonds and GIA first reports, p. 302, 13pp.
- Fall 1972, Diamond Synthesis by De Beers Research Labs, p. 68, 3pp.
Synthetic emerald
- May-June 1935, A coated emerald, p. 254, 1p.
- July-Aug. 1935, Synthetic beryl (including emerald), p. 281, 5pp.
- Nov.-Dec. 1935, Emerald filter tested, p. 355, 1p.
- Winter 1937, New synthetic emerald developments, p. 131, 4pp.
- Summer 1938, The Detection of Synthetic Emerald, p. 163, 5pp.
- Spring 1941, New Synthetic Emerald from San Francisco (Chatham), p. 134, 1p.
- Summer 1941, The Synthetic Emerald, by Gübelin and Shipley, p. 146, 5pp.
- Fall 1942, Synthetic emeralds appear commercially in San Francisco, p. 40, 2pp.
- Winter 1943, "Indian emeralds"-crackled quartz, dyed, p. 118, 1p.
- Spring 1944, Synthetic emeralds tested, p. 133, 2pp.
- Spring 1946, Improvements in the Quality of Synthetic Emeralds, by Switzer, p. 305, 3pp.
- Summer 1947, Synthetic Emeralds, by Gübelin, p. 421, 5pp.
- Summer 1947, German Synthetic Emeralds, p. 436, 1p.
- Summer 1947, Synthetic emeralds enter the American market, p. 439, 1p.
- Spring 1948, Nacken Synthetic Emeralds, p. 25, 1p.
- Spring 1951, New gem substitute resembles emerald, p. 29, 1p.
- Spring 1953, Peculiar inclusions in synthetic emerald, p. 283, 1p.
- Winter 1958, Ultra-violet in testing synthetic emeralds, p. 228, 1p.
- Spring 1959, Caution in testing synthetic emeralds, p. 265, 1p.
- Spring 1960, The New Lechleitner Synthetic Emerald, by Crowningshield, p. 11, 12pp.
- Winter 1960, Beryl With Synthetic Overgrowth, by Gübelin, p. 105, 9pp.
- Fall 1962, Emeralds coated with plastic, p. 340, 1p.
- Winter 1962, Emeralds with green plastic pavilions, p. 379, 1p.
- Winter 1962, Straight color banding in Chatham emerald, p. 380, 2pp.
- Spring 1963, Emerald with a dark green adventurine quartz back, p. 23, 1p.
- Fall 1963, A new synthetic emerald, p. 85, 2pp.
- Fall 1963, Synthetic emerald vs. natural, p. 91, 1p.
- Spring 1964, Developments in the Synthetic Emerald Field, by Liddicoat, p. 131, 7pp.
- Spring 1964, Two New Synthetic Emeralds (Zerfass and Gilson), by Gübelin, p. 139, 10pp.
- Fall 1964, Symerald (Lechleitner or Emerita) overgrowth, p. 218, 1p.
- Spring 1965, The New Linde Hydrothermal Emerald, p. 259, 7pp.
- Fall 1965, Chatham emeralds in high temperature, p. 336, 2pp.
- Winter 1965, Linde hydrothermal emeralds, p. 372, 1p.
- Winter 1967, A new synthetic emerald?, p. 242, 1p.
- Winter 1967, Gilson synthetic emerald, p. 245, 2pp.
- Spring 1969, Gilson synthetic emerald, p. 28, 2pp.
- Summer 1969, High refractive indices in synthetic emerald, p. 64, 2pp.
- Summer 1969, Linde hydrothermal emerald, p. 65, 1p.
- Summer 1969, Banded glass emerald imitation, p. 68, 2pp.
- Fall 1969, Odd emerald inclusions (?) (Linde), p. 100, 3pp.
- Winter 1969, New Non-fluorescent, High-Property Synthetic Emeralds, by Fryer, p. 106, 6pp.
- Winter 1969, Banding in non-fluorescent high-property synthetic emerald, p. 120, 2pp.
- Winter 1969, New hydrothermal emerald (Linde), p. 123, 3pp.
- Winter 1969, Synthetic flux-melt emeralds (Gilson), p. 123, 2pp.
- Winter 1969, A new synthetic flux-melt emerald with flower-like inclusions, p. 130, 3pp.
- Spring 1970, Parallel growth in synthetic emerald (Gilson), p. 151, 1p.
- Spring 1970, Zerfass synthetic emeralds (flux fusion), p. 162, 1p.
- Summer 1970, New hydrothermal synthetic emerald, p. 185, 3pp.
- Fall 1970, Assembled emerald proves to be Linde, p. 226, 1p.
- Fall 1970, More on Linde hydrothermal emerald, p. 233, 2pp.
- Summer 1971, A colorless beryl with green plastic-coated back, p. 320, 1p.
- Fall 1971, A platinum wire left in a synthetic emerald, p. 349, 1p.
- Fall 1971, Another flux-grown synthetic emerald (from Vancouver, Canada), p. 359, 2pp.
- Winter 1971, Ferrer glass imitation emeralds, p. 378, 2pp. (See also *Winter 1978, p. 366, 1p.)
- Winter 1971, Beryl triplets to imitate emeralds, p. 380, 1p.
- Winter 1971, Parallel growth banding typical in flux-grown synthetic emeralds, p. 382, 2pp.
- Spring 1972, Non-fluorescent synthetic emerald, p. 10, 2pp.
- Summer 1972, Beryl coated emerald-green with plastic, p. 54, 2pp.
- Spring 1973, Glass imitation of emerald crystals, p. 136, 1p.
- Spring 1973, Unusual synthetic emerald inclusions, p. 139, 1p.
- Spring 1973, Synthetic emerald with very strong zoning, common, p. 149, 1p.
- Summer 1973, A rare emerald imitation (a hollow bead filled with crushed emerald in oil), p. 185, 2pp.
- Summer 1974, Emerald imitations (painted quartz in matrix, filled hollow back, and emerald-green fluorite), p. 300, 4pp.
- Spring 1976, Another new flux-type synthetic emerald, p. 138, 2pp.
- Fall 1976, A spodumene (?) crystal in a synthetic emerald, p. 214, 1p.
- Fall 1976, Some very effective emerald imitations, p. 220, 2p.
- Fall 1977, Pale green beryl crystal core-drilled & filled with deep green cement, p. 328, 1p.
- Spring 1979, Imitating Emerald, p. 154, 1p.
- Fall 1979, Another Fake Matrix Emerald, p. 196, 2pp.
Topaz
- Summer 1948, Topaz, p. 49, 3pp.
- Summer 1948, A 1,463 ct. egg briolette cut blue topaz to the Museum of Natural History, largest cut topaz, p. 60, 1p.
- Winter 1948, Topaz Colored by Radium, p. 122, 1p.
- Summer 1956, Nigerian Topaz, by Webster, p. 291, 4pp.
- Fall 1960, Cat's-eye blue topaz, p. 69, 1p.
- Winter 1963, Hairlike inclusions in brown topaz from Mexico, p. 104, 2pp.
- Winter 1965, A rare hairlike inclusion in topaz from Mexico, p. 362, 2pp.
- Spring 1967, Irradiated topaz, p. 155, 2pp.
- Fall 1973, Fade test on gamma irradiated topaz, p. 212, 2pp.
- Winter 1973, Red-orange topaz, not gamma treated (?), (shows absorption spectrum), p. 236, 1p.
- Fall 1974, Inclusions of Albite and Phenakite in Gem Topaz From the Tarryall Mts., Colo., p. 337, 3pp.
- Fall 1975, Unusual twisted hair-like inclusions in topaz, p. 73, 2pp.
Tourmaline
- Spring 1936, A New Alexandrite-like Tourmaline Found, p. 7, 2pp.
- Spring 1950, Tourmaline Cat's-eye Studied, p. 289, 1p.
- Spring 1955, Recent Discovery of Fine Gem Tourmaline in Maine, p. 131, 6pp.
- Winter 1955, Nodular Tourmalines, by Sinkankas, p. 237, 2pp.
- Summer 1958, Historic Himalaya Tourmaline Mine (Calif.) reopened, p. 163, 11pp.
- Fall 1964, "Chameleonite" tourmaline, greenish-brown to brownish-green by day and intense brownish-red to reddish-brown by night, p. 214, 2pp.
- Fall 1965, Intense emerald-green tourmaline, p. 340, 2pp.
- Summer 1966, A fine blue-green tourmaline from Mount Mica, Me., p. 43, 2pp. (See also Fall 1966, p. 70, 2pp.)
- Winter 1967, Chrome tourmaline of Tanzania, p. 242, 3pp.
- Spring 1975, New find of gem tourmaline from Newry Mt., Me., p. 19, 6pp.
- Spring 1975, A rock with green tourmaline and ruby, mixed, p. 27, 1p.
- Fall 1977, A Tourmaline with no dichroism, p. 330, 2pp.
- Winter 1977, Imitation Maine Tourmaline, p. 364, 1p.
- Fall 1980, Aschentrekker - the ash-drawer tourmaline, by Betsy Barker, p. 375, 4pp.
- Winter 1980, Exceptional 11 carat tri-color tourmaline, pink, colorless and greenish-blue, p. 400, 2pp.