Origin
Southern and central Africa
Madagascar, Southern and central Africa
Color
Black, Brownish, Brown
Grey, Brownish, Blue, Colorless, White, gray, Reddish
Streak
Brown
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
4.5-4.82.54-2.61
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
None, parting may develop along {111}
{001} Perfect, {010} Good
Mohs Hardness
5.56
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
-
-
Pleochroism
none.
-
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
2.08-2.161.518-1.536
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.005-0.008
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
-
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Creativity
Healing
Emotional healing
-
Qualities Associated
Protection
Creativity