Origin
Southern and central Africa
Canada, USA, Italy, Russia, Switzerland, Tanzania, Kenya, Sri Lanka
Color
Black, Brownish, White, Brown
Green, Yellow, Brown, Violet, Blue
Streak
Reddish, Black
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For which Rashi?
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Planet
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Element of Planets
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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
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Birthstone
Planetary
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Talisman
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Tenacity
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Solubility
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Durability
-
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Specific Gravity
4.76-5.03-9999
1
7.18
👆🏻
Fracture
Conchoidal
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Cleavage
None
Indiscernible
Mohs Hardness
5.5-6.5-9999
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Ca10(Mg,Fe)2(Si2O7)2(SiO4)2O(OH)2