| | Home > GemStones > Spinel > General > Facts | Spinel Properties Chemical Composition | It is Magnesium Aluminum Oxide having the chemical formula MgAl2O4. | Colours | Red, blue, green, orange, mauve, violet, yellow, purple, brown and black. | Streak | White or grayish white. | Refractive Index | 1.71 - 1.76 (approx) | Specific Gravity | 3.58-3.73 | Luster | Vitreous. | Solid State | Transparent to translucent and sometimes nearly opaque. | Crystal System | Isometric – Cubic Hexagonal crystal system. | Hardness | 8 Mohs. | Clevage | None | Fractures | Uneven to conchoidal. | Bi-refringence | None | Luminescence | Sometimes fluorescent. | Tenacity | Brittle | Synthetic Availability | Synthetic stones are available. | Enhancement | Not enhanced. | Source | Myanmar (Burma), Afghanistan, Madagascar, Pakistan, Australia, Italy, Sri Lanka (Ceylon), Brazil, Tanzania, Sweden, Turkey, Russia and United States. | Precautions | Only general gemstone precautions required. |
Related Links :
|
| |
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. |
|
|
|
|
|
|
|
| |
Jewel Info 4 U: your trusted guide for jewellery online.
Copyright 2004 JewelInfo4u.com. All rights reserved. The information contained in the JewelInfo4u.com webpage may not be published, broadcast, rewritten or redistributed without the prior written authority of JewelInfo4u.com. Copyright 2004 JewelInfo4u.com. All rights reserved. |
Welcome, you are logged in as 
