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chrysoberyl

chrysoberyl (krĬs´əbĕr´Ĭl) [Gr.,=golden beryl], a beryllium aluminate used as a gem. It has a vitreous luster and is transparent to translucent. The more valuable cat's-eye is a variety of chrysoberyl. Another variety, alexandrite, was first discovered in the Ural Mts. of Russia, on the birthday of Czar Alexander II, for whom it was named. It is remarkable in that it is green by daylight and raspberry red under artificial light. It was popular in imperial Russia, both because of its association with the czar and because red and green were the colors of the empire. It is now found chiefly in Sri Lanka and Brazil.

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"chrysoberyl." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 29 May. 2017 <http://www.encyclopedia.com>.

"chrysoberyl." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (May 29, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/chrysoberyl

"chrysoberyl." The Columbia Encyclopedia, 6th ed.. . Retrieved May 29, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/chrysoberyl

chrysoberyl

chrysoberyl Mineral, BeAl2O4; sp. gr. 3.5–3.8; hardness 8.5; orthorhombic; various shades of green or greenish-yellow; white streak; vitreous lustre; crystal form tabular; cleavage prismatic {110}; occurs in granites, pegmatites, and mica schists, also in alluvial sands and gravels. The emerald-green variety is used as a gemstone (alexandrite).

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"chrysoberyl." A Dictionary of Earth Sciences. . Encyclopedia.com. 29 May. 2017 <http://www.encyclopedia.com>.

"chrysoberyl." A Dictionary of Earth Sciences. . Encyclopedia.com. (May 29, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/chrysoberyl

"chrysoberyl." A Dictionary of Earth Sciences. . Retrieved May 29, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/chrysoberyl

chrysoberyl

chrysoberyl •anthill • Edgehill • sidehill • molehill •foothill • dunghill •sigil, strigil, vigil •strongyle • Virgil • Gaitskell • orchil •roadkill • Danakil • overkill •amyl, Tamil •treadmill • windmill • gristmill •sawmill • watermill • vinyl • mini-pill •overspill • Caryl •mandrel, mandrill •Avril •beryl, Cheryl, chrysoberyl, imperil, Merrill, peril, Sheryl •tendril • April • Cyril • fibril • nombril •nostril • Bovril • tumbril • escadrille •espadrille • gracile • Cecil • utensil •codicil • windowsill •dactyl, pterodactyl •pastille • standstill •dentil, lentil, ventil •quintile • pistil • postil • tormentil •ethyl

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"chrysoberyl." Oxford Dictionary of Rhymes. . Encyclopedia.com. 29 May. 2017 <http://www.encyclopedia.com>.

"chrysoberyl." Oxford Dictionary of Rhymes. . Encyclopedia.com. (May 29, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/chrysoberyl

"chrysoberyl." Oxford Dictionary of Rhymes. . Retrieved May 29, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/chrysoberyl