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Beryl - Wikipedia, the free encyclopedia
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The mineral beryl is a beryllium aluminium cyclosilicate with the chemical formula Be 3 Al 2 ( SiO 3 ) 6 . The hexagonal crystals of beryl may be very small or range to several meters in ...
en.wikipedia.org/wiki/Beryl
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Brown G E , Mills B A , American Mineralogist , 71 (1986) p.547-556, High-temperature structure and crystal chemistry of hydrous alkali-rich beryl, from the Harding pegmatite, Taos County, New Mexico, Sample: T = 24 deg C, before heating, O2x has been corrected ; ... General Beryl Information...
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webmineral.com/data/Beryl.shtml
webmineral.com/data/Beryl.shtml
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Information on the mineral beryl ... (Hexagonal) Beryl is famous for its perfect, six-sided crystals. Crystals are prismatic hexagons, and usually occur individually. Crystals may be enormous. Some 30 foot long (about 8 meters), well-crystallized examples are known to exist.
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www.minerals.net/mineral/silicate/cyclo/beryl/beryl.htm
www.minerals.net/mineral/silicate/cyclo/beryl/beryl.htm
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Silicates : Cyclosilicates : Beryl Tourmaline group ... Fuses with difficulty, roundening the edges of small fragments. Precious stone varietys of beryl is : ... Beryl in microcline from Selsvitberget.
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www.geology.neab.net/minerals/beryl.htm
www.geology.neab.net/minerals/beryl.htm
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Beryl Gem Information including description and pictures. ... Everyone admires the green fire of emerald and the watery blue charm of aquamarine, but not many realize that they are different colors of the same mineral: beryl. There are other members of the beryl family much less known then their famous cousins.
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www.mysticgames.com/gems/Beryl.htm
www.mysticgames.com/gems/Beryl.htm
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Yellow to yellow-orange samples are referred to as golden beryl. True Heliodor is valued by collectors but not seen much in jewelry, the golden beryls are seen often in jewelry but are not as expensive as aquamarine.
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www.theimage.com/gemstone/beryl/beryl.html
www.theimage.com/gemstone/beryl/beryl.html
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Mineral Information on the WEB ... the name come from the Greek, beryllos, indicating a green gemstone ... A photo of the mineral beryl...
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www.theimage.com/mineral/beryl/
www.theimage.com/mineral/beryl/
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