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chrysoberyl
chrysoberyl [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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Cite this article
"chrysoberyl." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "chrysoberyl." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1E1-chrysobe.html "chrysoberyl." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-chrysobe.html |
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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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Cite this article
AILSA ALLABY and MICHAEL ALLABY. "chrysoberyl." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "chrysoberyl." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O13-chrysoberyl.html AILSA ALLABY and MICHAEL ALLABY. "chrysoberyl." A Dictionary of Earth Sciences. 1999. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-chrysoberyl.html |
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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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Cite this article
"chrysoberyl." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>. "chrysoberyl." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O233-chrysoberyl.html "chrysoberyl." Oxford Dictionary of Rhymes. 2007. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-chrysoberyl.html |
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