Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
USA, Southern and central Africa
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Brown, Green, White, gray, Blue, Yellow
Streak
White
White
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
-
-
Ring Metal
-
-
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
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.364.00-4.65
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Sub-Conchoidal
Cleavage
Good on {100}
Perfect on [1011]
Mohs Hardness
6.5-75-5.5
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references