Gemstone Chart |
Natural Triplite Triplite is a rare fluoro-hydroxide phosphate mineral that forms in phosphate rich granitic pegmatites and high temperature hydrothermal veins. The name is from the Greek triplos for triple, in reference to the three cleavage directions. It is a very gemstones and few cut stones have been ever reported. Color: brightly coloured (brown, salmon, flesh-red) Categories: semi-precious stone Chemical Composition: (Mn,Fe2+)2(PO4)(F,OH) Crystal Group: Monoclinic Refractive Index: 1.650 - 1.680 Hardness: 5 - 5.5 Density: 3.44 - 3.90 Occurrence: the Shigar Valley, Pakistan; China; France, Bavaria, Germany; Kimito, Finland; Karibib, Namibia; Maine, and Connecticut, Arizona and Colorado in the United States.
| 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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