chrysoberyl

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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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"chrysoberyl." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 7 Dec. 2009 <http://www.encyclopedia.com>.

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chrysoberyl

A Dictionary of Earth Sciences | 1999 | | Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

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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AILSA ALLABY and MICHAEL ALLABY. "chrysoberyl." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 7 Dec. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "chrysoberyl." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (December 7, 2009). http://www.encyclopedia.com/doc/1O13-chrysoberyl.html

AILSA ALLABY and MICHAEL ALLABY. "chrysoberyl." A Dictionary of Earth Sciences. 1999. Retrieved December 07, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-chrysoberyl.html

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cats-eye

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

cat's-eye • n. a semiprecious stone, esp. chalcedony or chrysoberyl, with a chatoyant luster.

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"cat's-eye." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 7 Dec. 2009 <http://www.encyclopedia.com>.

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A Dictionary of Earth Sciences entry for alexandrite

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Free newspaper and magazine articles

	CHRYSOBERYL.(Brief Article) Magazine article from: Rocks & Minerals; 9/1/1999
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	CHRYSOBERYL.(Brief Article) Magazine article from: Rocks & Minerals; 9/1/1999; ; 700+ words ; ...one of the more exotic oxides such as chrysoberyl, a mineral known to collectors for its...we have chosen a suite of exceptional chrysoberyl specimens as our Connoisseur's Choice. Chrysoberyl occurs in a variety of colors, including...
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	Chrysoberyl.(short story) Magazine article from: The Magazine of Fantasy and Science Fiction; 6/1/1998; ; 700+ words ; ...almost like a geisha's silk fan on either side of its spine. And it had eaten the neighbor's kittens. "They named him Chrysoberyl," said Mr. Fithian. "That's a green gemstone," said Jessica. Fithian looked tired. "He eats five pounds of raw...
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	THROWING LIGHT ON RARE MINERALS Newspaper article from: The Record (Bergen County, NJ); 9/29/1995; ; 700+ words ; ...it. The "Camelot," a chrysoberyl engraved with a bald eagle...photographer, and owner of a chrysoberyl gem mine in Brazil, where...Animal Magnetism, a dozen chrysoberyl cat's-eyes mimicking...Matadors, a suite of seven red chrysoberyls, also will be on display...
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	Madagascar sapphire. (Jewel of the Month). Magazine article from: Jewelers Circular Keystone; 11/1/2002; ; 700+ words ; ...was hear-treated with yellow chrysoberyl rough (which had been mistaken for sapphire), beryllium from the chrysoberyl migrated into the sapphire, creating...were hear-treated along with chrysoberyl rough to produce better, more...
	Emerald and associated minerals from A Franqueira, Pontevedra, Spain Magazine article from: Mineralogical Record; 11/1/1997; ; 700+ words ; ...minerals include phenakite crystals and chrysoberyl crystals and twins, some showing the...depending upon illumination source suggested chrysoberyl, an identification confirmed by X...appears. In zones nearest the contact, chrysoberyl, phenakite and beryl formed. Chromium...
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