Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
Color
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Red, Reddish, orange, Brown
Streak
White
White
For which Rashi?
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Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
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Deities
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Not to wear with
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Powers
-
-
Birthstone
Planetary
-
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Talisman
-
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Tenacity
Brittle
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Solubility
-
-
Durability
-
-
Specific Gravity
2.57-2.664.12-4.18
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Fair on {100}, poor on {001} and {010}
{???} Distinct
Mohs Hardness
7-7.57-7.5
2
10
👆🏻
Chemical Composition
Mg2Al4Si5O18
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)