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Synthetic Emerald

Synthetic Emerald Created by the Renowned Chatham Company, est.1938, San Francisco.

More Information

Gems & Gemology: The Quarterly Journal of the Gemological Institute of America.

 

G&G Article Index: Synthetic Emerald

  • May-June 1935, A coated emerald, p. 254, 1p.
  • July-Aug. 1935, Synthetic beryl (including emerald), p. 281, 5pp.
  • -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.