Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Canada, USA, Mexico, Madagascar, Australia, Finland, India, Russia
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Violet, Colorless, gray, White, Green
Streak
White
White
For which Rashi?
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Aquarius
Planet
-
-
Element of Planets
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Water
Energy
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-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
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Isis
Not to wear with
-
-
Powers
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Protection, Psychic Power
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.362.69-2.72
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
Good on {100}
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
6.5-76-6.5
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
(Na,Ca)1-2Si3-2O8