Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Southern and central Africa, Burma, Tanzania, India, Sri Lanka
Color
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Yellow, White, Green, Brown, Greenish, gray
Streak
White
Grey, gray
For which Rashi?
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-
Planet
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-
Element of Planets
-
-
Energy
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-
How to Wear?
Finger
-
Ring Metal
-
-
Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.57-2.663.20-3.25
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
Fair on {100}, poor on {001} and {010}
Good/distinct on [210]
Mohs Hardness
7-7.55.5
2
10
👆🏻
Chemical Composition
Mg2Al4Si5O18
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references