Origin
Southern and central Africa
Kenya, Southern and central Africa
Color
Black, Brownish, Brown
Colorless, Greenish, Blue
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
4.5-4.83.40-3.58
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
None, parting may develop along {111}
{010} Perfect
Mohs Hardness
5.57.5
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
-
Pleochroism
none.
-
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
2.08-2.161.701-1.724
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.005-0.007
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Spiritual Awakening
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Inner Peace