Jade is the gemstone family that includes both Jadeite and Nephrite. The term Jade is still often interchanged with jadeite and nephrite without regard to the fact that they are different minerals with different properties.
The term jade has its linguistic roots in the translation by Spanish navigators bringing this supposedly medicinal stone back from Mexico. In 1595 Sir Walter Raleigh wrote about jade (in Spanish piedra de ijada) as being useful “for spleen stones.” This was translated in to French as pierre de l’ejade but a printer’s error turned it into le jade and in English it quickly became jade. Also known in Spanish as piedra de los riñones “stone of the kidneys” become lapis nephriticus in Latin, nephros in Greek which evolved into nephrite in English.
Online G&G articles on 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.