Origin
Southern and central Africa
Madagascar
Color
Black, Brownish, Brown
Brownish, Black, Reddish, Brown, Blue
Streak
Brown
Reddish, Brown
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
4.5-4.83.84
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Conchoidal
Cleavage
None, parting may develop along {111}
{0001} good, {10 1 0} parting
Mohs Hardness
5.57.5-8
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
(Ca,Ce)(Al,Ti,Mg)12O19
Luster
-
Vitreous
Pleochroism
none.
O = brownish gray; E = gray
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
2.08-2.161.79-1.807
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Hexagonal
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Balance