| | Home > GemStones > Lapis_Lazuli > General > Facts | Lapis Lazuli Facts Chemical Composition | It is a rock composed of Lazurite (Na,CA)8(AlSiO4)6(SO4,S,Cl)2 , Hauynite (Na,CA)4-8(AlSiO4)6(SO4)1-2 , Sodalite Na8(AlSiO4)6Cl2 , Noselite Na8(AlSiO4)6SO4 , Calcite CaCO3 and Pyrite FeS2. | Colours | Intense deep blue with pyrite inclusions. Sometimes white coloured calcite lines also present. Other possible colour shades – purplish blue, greenish blue. | Hardness | Varies between 5-6 ( Mohs) . | Refractive Index | Approximately 1.50 | Specific Gravity | It varies between 2.7 to 2.9 and increases with the increase of pyrite content. | Luster | Greasy. | Solid State | Opaque | Crystal System | None as it is a rock. | Pleochroism | None | Phenomena | None | Fractures | Uneven | Enhancement | Frequently enhanced to improve the colour and durability by dying and impregnated. | Source | Afghanistan, Chile, Siberia, United States, Burma, Canada, Russia, Italy, Mongolia and Pakistan. | Precautions | Protect from sunlight, large temperature changes, cosmetics, harsh household cleaning products. |
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Belly Button Piercing
The Egyptians, the Indians and many other cultures pierced this humble button to show the significance of the person sporting a pierced navel - Royalty, Warriors, exceptional Beauty. |
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