Origin
Southern and central Africa
Southern and central Africa
Color
Black, Brownish, Brown
Brown, Brownish, White, Colorless, Yellow
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
4.5-4.81.58-1.60
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
None, parting may develop along {111}
{011} Imperfect
Mohs Hardness
5.52
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Luster
-
Vitreous
Pleochroism
none.
Weak: yellowish brown yellowAnthony et al
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
2.08-2.161.509-1.541
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.030
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Happiness
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Abundance