Gemstone Chart (A Searchable Collection of Precious/Semi-precious Stone Information),Gem Chart -- e-Tools Age

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.


Gemstone Chart	Gemstone Hardness Chart	Gemstone Clarity Chart	Gemstone Cut Shape Chart

Categories Country/region Crystal Group Color
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Gemstone Chart

Natural Turquoise
Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium.The gem turquoise owes it's beauty almost entirely to its superb color. It has been used for ornamentation since 3000BC and possibly before.
Color: Blue, Greenish Blue
Categories: semi-precious stone
Chemical Composition: CuAl6(PO4)4(OH)85H2O
Crystal Group: Triclinic
Refractive Index: 1.62
Hardness: 5.5-6
Density: 2.60- 2.90
Occurrence: Iran, USA, India, Tibet, China, Egypt, Chile, Russia, Australia

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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

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