
1) Alexandrite 2) Cats eye 3) Cymophane
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https://www.crosswordclues.com/clue/chrysoberyl

1) Beautiful stone 2) Cut mineral 3) Decorative stone 4) Gemstone 5) Gemstone mineral 6) Jewel 7) Jewel mineral 8) Mineral jewel 9) Mineral 10) Mineral gemstone 11) Opaque gem 12) Orthorhombic mineral 13) Polished mineral 14) Polished jewel 15) Precious gemstone 16) Prized stone 17) Prized mineral 18) Precious stone
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https://www.crosswordclues.com/clue/chrysoberyl

The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula BeAl2O4. The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning `a gold-white spar`. Despite the similarity of their names, chrysoberyl and beryl are two completely different gemstones, although they both co.....
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http://en.wikipedia.org/wiki/Chrysoberyl

• (n.) A mineral, found in crystals, of a yellow to green or brown color, and consisting of aluminia and glucina. It is very hard, and is often used as a gem.
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http://thinkexist.com/dictionary/meaning/chrysoberyl/

gemstone, beryllium and aluminum oxide (BeAl2O4). A variety that is often cloudy, opalescent, and chatoyant is known as cymophane. Some cymophane, ... [1 related articles]
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http://www.britannica.com/eb/a-z/c/82
Chrys'o·ber`yl noun [ Latin
chrysoberyllus , Greek ...;
chryso`s gold + ... beryl.]
(Min.) A mineral, found in crystals, of a yellow to green or brown color, and consisting of aluminia and glucina. It is very hard, and is often used as a gem.
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http://www.encyclo.co.uk/webster/C/75

Chrysoberyl is a mineral occurring in granite rocks, pegmatites, and in mica schists. It is frequently found in river sand and gravels in round pieces about the size of a pea, but also crystallized in eight-sided prisms.. It serves as a gem stone: cymophane, oriental chrysolite, alexandrite and 'cats eye' which can be of great value. It has the for...
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http://www.probertencyclopaedia.com/browse/HC.HTM

Beryllium aluminate
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http://www.translationdirectory.com/glossaries/glossary075.htm

[
n] - a rare hard yellow green mineral consisting of beryllium aluminate in crystal form
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http://www.webdictionary.co.uk/definition.php?query=chrysoberyl
noun a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone
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https://www.encyclo.co.uk/local/20974

a mineral, beryllium aluminate, BeAlO, occurring in green or yellow crystals, sometimes used as a gem. Also called
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https://www.infoplease.com/dictionary/chrysoberyl
No exact match found.