| | Home > GemStones > Obsidian > General > Facts | Obsidian Properties Chemical Composition | It is Silicon Di Oxide and the chemical formula is SiO2. | Colours | Black, Dark Green, Dark Brown. Other rare colours are blue, gray, red and orange. | Streak | White. | Varieties | Snowflake Obsidian , Sheen Obsidian and Rainbow Obsidian. | Specific Gravity | Approximately 2.6 | Refractive Index | 1.48 -1.50 | Luster | Vitreous to glassy. | Crystal System | Not Applicable. It is amorphous in nature. | Hardness | 5 - 5.5 Mohs. | Solid State | Opaque to translucent. | Fractures | Conchoidal. | Source | United States, Hawaii, Japan, Iceland, Java, Hungary, Russia, Ecuador, Italy, Mexico and Scotland. | Enhancement | Not enhanced. | Precautions | Protect from sharp blows, scratches, harsh chemicals and cosmetics. |
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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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