Origin
Brazil, Madagascar, Zimbabwe, Russia, Sri Lanka, India, Burma, Origins: Brazil
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
Color
Greenish, Green, Brownish, Red, Blue, Brown, gray
Red, Reddish, orange, Brown
Streak
White
White
For which Rashi?
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Planet
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Element of Planets
Earth, Water
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Energy
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How to Wear?
Finger
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Ring Metal
-
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Deities
-
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Not to wear with
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Powers
Healing
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Birthstone
Planetary
-
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Talisman
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Tenacity
Brittle
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Solubility
-
-
Durability
-
-
Specific Gravity
3.69-3.814.12-4.18
1
7.18
👆🏻
Fracture
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
{???} Distinct
Mohs Hardness
8.57-7.5
2
10
👆🏻
Chemical Composition
BeAl 2 O 4
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)