Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Colorless, Yellow, Green, Violet, White, Blue, Red, pink
Streak
White
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For which Rashi?
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Pisces, Taurus, Gemini, Libra
Planet
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Saturn
Element of Planets
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Water
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
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Apollo
Not to wear with
-
-
Powers
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Psychic Power
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
insoluble
Durability
-
-
Specific Gravity
3.26-3.363.95-4.03
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Good on {100}
None, but may exhibit parting
Mohs Hardness
6.5-79
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Al 2 O 3