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JADE
Both figures (A) and (B) are nephrite. The carvedornament at the top of the page comes from China while thedarker green (B) is known as "Spinach
Jade" and is mostcommonly found in New Zealand. The jadeite used to form thecabochon (C) came from Tawmaw, Burma. Jades may appearin black, white, violet, and reddish shades but the more closelyit approaches a fine emerald in both color and transparency, themore highly it is valued. Specimens from the collection ofBritish Museum (Natural History), London.
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The green andalusite (A) is from Brazil. This gem isstrongly trichroic and when properly cut as in the illustrationwill display the red color. Figure (B) illustrates an enstatite,often incorrectly termed "green garnet," Kimberley. The slight\bluish green gem (C) is diopside, Zillerthal, T1'rol; (Drkyanite; (E) idocrase, often mistaken for jade. The illustrationat (F) is diopside with garnet, Ala, Piedmont. (G) Idocrase;(FI) fibrolite from the Burma ruby mines, Mogok. Kyanite withstaurolite in mica schist from Pizzo Forno, Faido, Sr,it:erland,is pictured at (J). Figure (K) shows chiastolite, a variety ofandalusite, Fresno County, California. Specimens from thecollection of British Museum (Natural History), London.
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