Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Southern and central Africa
Color
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Red, Yellow, Brownish, White, Reddish, Greenish, orange
Streak
White
Grey, Yellow, gray
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.57-2.663.10-3.20
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
Fair on {100}, poor on {001} and {010}
Poor to good on (001)
Mohs Hardness
7-7.56-6.5
2
10
👆🏻
Chemical Composition
Mg2Al4Si5O18
(Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.