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The cymophane is formed like the emerald, of alumina and glucina.
The cymophane of modern mineralogists is the oriental chrysolite, the chrysopal, and the chrysoberyl of the lapidaries. It is remarkable for its lively brilliancy, its polish, similar to that of the sapphire, and its warm gay tint. But its celebrity arises from its unique property of displaying blue reflections, with a milky tint that seems floating in its interior. This circumstance originated the name given to it by Hauy, which signifies floating light.
Crystals of cymophane are usually found in alluvial soils; in Ceylon and Brazil they occur in the same sands that furnish crystals of topaz, corundum, &c.--sands formed by the disintegration of ancient rocks. Fine specimens of cymophane have recently been found in Connecticut and in the Ural Mountains. |
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Precious Stones Guide Vol 2
>> Mineralogy and Location of Cymophane
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