Origin
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Sri Lanka
Color
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
Red, Blue, Green, Brown, Black
Streak
White
White
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
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.57-2.663.63-3.9
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal, Uneven
Cleavage
Fair on {100}, poor on {001} and {010}
Indistinct
Mohs Hardness
7-7.57.5-8
2
10
👆🏻
Chemical Composition
Mg2Al4Si5O18
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references