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Medium to dark green beryl which derives its color from chromium (some gemologists argue that dark green beryl colored by vanadium should be called emerald, and others insist that chromium must be present). The best known sources include Colombia, Zambia.
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www.tradeshop.com/gems/beryl.html
www.tradeshop.com/gems/beryl.html
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Without these splendid color varieties, beryl would be a rather ordinary gemstone with only average fire and brilliance. Emerald is the green variety and Aquamarine is the blue variety of beryl.
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www.galleries.com/minerals/SILICATE/BERYL/beryl.htm
www.galleries.com/minerals/SILICATE/BERYL/beryl.htm
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Since all these color varieties are caused by impurities and pure beryl is colorless, it might be tempting to assume that goshenite is the purest variety of beryl. However, there are several elements that can act as inhibitors to color in beryl and so this assumption may not always be true.
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www.galleries.com/minerals/gemstone/goshenit/goshenit.h...
www.galleries.com/minerals/gemstone/goshenit/goshenit.htm
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The rarest beryl is bixbite (red) and is not usually seen in jewelry as it occurs in only very small crystals. The red color is due to manganese, and the best material comes from Utah.
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www.theimage.com/gemstone/beryl/beryl.html
www.theimage.com/gemstone/beryl/beryl.html
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Bi-color ... PASTEL BERYL NATURAL COLOR Hardness 7.5 ... The Beryl looks prettier than the picture. Certain subtle elements of the gem are difficult to grasp with any imaging system. ¦ Aquamarine 1 ¦ Aquamarine 2 ¦ Aquamarine Brazil ¦ Beryl ¦ Affordable Aqua.
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www.gggems.com/smallberyl.htm
www.gggems.com/smallberyl.htm
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Beryl 6 Sided with Ultra-Widescreen Wallpaper ... Transparent windows may be pretty, and color based transparency is a good hack for making legacy apps transparent, but I don't think it would be useful for coding at all.
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www.youtube.com/watch?v=FESBa3qjZ20
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Star of Foresight ... Secret of Pharaon...
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Click on a letter for lists of other minerals ; Click on the underlined varieties below. For information, pictures and links to items for sale Varieties of The Mineral Beryl ... Color: bright green, blue, greenish-blue, yellow, red, pink, white, colorless. Transparency: Crystals are transparent to translucent;
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www.minerals-n-more.com/Info_Beryl_Family.html
www.minerals-n-more.com/Info_Beryl_Family.html
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The deep blue Maxixe-type color center in beryl; Kunr N.{ssAUB, ETryE . Pnnscorr,A NDD . L. Wooo; Bell Laboratories, Murray Hill, New Jersey 07974; Abstract; A deep-blue color center can be introduced into some beryl by gamma ray, X-ray, or neutron irradiation.
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www.minsocam.org/ammin/AM61/AM61_100.pdf
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