Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Australia
Color
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Brown, Reddish, Brownish, Yellow
Streak
White
Brown, Brownish, Yellow
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
HCl soluble
Durability
-
-
Specific Gravity
2.57-2.664.27-4.29
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven
Cleavage
Fair on {100}, poor on {001} and {010}
Perfect {010}
Mohs Hardness
7-7.55-5.5
2
10
👆🏻
Chemical Composition
Mg2Al4Si5O18
FeO(OH)Arthur Thomas , Gemstones (2009)