Origin
Sri Lanka
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Red, Blue, Green, Brown, Black
Blue, Violet, Greenish, Brown, Colorless, Yellow, gray
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
3.63-3.92.57-2.66
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Subconchoidal, Conchoidal
Cleavage
Indistinct
Fair on {100}, poor on {001} and {010}
Mohs Hardness
7.5-87-7.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Mg2Al4Si5O18