Home|Add to Favorites|Add to My Toolkit
Jewel&Precious Metals|Register|Sign in|Customization

Gemstone ChartGemstone Hardness ChartGemstone Clarity ChartGemstone Cut Shape Chart
Sharing buttons for facebookSharing buttons for twitterSharing buttons for Google plus

Categories   Country/region
  

Crystal Group  Color
  

                                                                                                                    

 1/1         
Gemstone Chart
Natural Turquoise 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

 1/1          

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

Recent user inquiry: