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Gemstone Chart (A Searchable Collection of Precious/Semi-precious Stone Information)

This is a searchable collection of  international precious stone/gem. With its sparkle and color, a gem can mystify and intrigue people.  Most gemstone buyers purchase gems  for making jewelry.  But some buyers are gemstone collectors. The chart is  resource for your gemstone buying and collecting.
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Gemstone Chart
Natural Beryl Natural Beryl
Beryl is a semi-precious clear gemstone which usually comes in greens, yellows, and occasionally pinks, ands various shades thereof.
Color: Green, blue, pink, yellow, red
Categories: semi-precious stone
Chemical Composition: Be3Al2(SiO3)6
Crystal Group: Hexagonal
Refractive Index: 1.577(+-.016), 1.583 (+-.017)
Hardness: 7.5
Density: 2.67-2.745
Occurrence: Austria, Columbia, Brazil, Russia, East Africa, Australia, Madagascar, South Africa, Zimbabwe, India, Pakistan, Zambia, Nigeria, U.S.A., Afghanistan

Natural Euclase Natural Euclase
Euclase is a rare mineral, resembling beryl in color and hardness.Euclase is found in granitic pegmatites with other gem minerals such as topaz and beryl.
Color: White, pale blue, greenish blue, dark blue.
Categories: semi-precious stone
Chemical Composition: BeAlSiO4(OH)
Crystal Group: Monoclinic
Refractive Index: 1.652-1.672
Hardness: 7.5
Density: 3.18
Occurrence: Brazil, Tanzania, Russia, Zimbabwe, Madagascar, Austria.

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Related Link:    Gold Coins Chart  Gold Bars Chart  Diamond Size Chart  Necklace Size Chart  Ring Size Chart  Ear Gauge Size Chart

Top Use:    Gemstone Chart     Categories:semi-precious

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