Origin
Sri Lanka, Southern and central Africa
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Color
Blue
Brown
Streak
-
Brownish, Red, Black
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.105.2
1
7.18
👆🏻
Fracture
-
Subconchoidal, Conchoidal
Cleavage
None
Good in one direction
Mohs Hardness
96-6.5
2
10
👆🏻
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Luster
-
Resinous
Pleochroism
-
-
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent, Translucent
TransparentWalter Schumann
Refractive Index
1.757-1.7802.190-2.457
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic
Birefringence
0.007-0.0100.083
0
0.296
👆🏻
Clarity
Transparent
TransparentWalter Schumann
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
Intuition
Strength
Healing
Emotional healing
Emotional healing
Qualities Associated
Creativity
Balance