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Ch. 3: Precious Gem stones in 1913

Ch. 3: Precious Gem stones in 1913 Page of 115 Ch. 3: Precious Gem stones in 1913 Text size:minus plus Restore normal size   Mail page  Print this page
GEMS AND PRECIOUS STONES.                              663
sere counted. These ranged from 3 inches to 16 inches in diameter, and sections over 3 feet long were exposed. Each beryl is surrounded by a layer of oligoclase feldspar one-half inch to 3 inches thick, the beryl crystals are variously colored pale bluish green and yellowish green, and light and dark golden yellow. Most of them we opaque, but some contain translucent portions. Many crystals have been broken, either in mining or by collectors looking for gem material, and hundreds of fragments of beryl are scattered over the dump. No transparent gem beryl was observed, but the impression gained by a study of the deposit was that gem beryl might be found by further excavation.
Ch. 3: Precious Gem stones in 1913 Page of 115 Ch. 3: Precious Gem stones in 1913
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US Geol. Surv. 1913. Gemstones, Metals.
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