Origin
Southern and central Africa
Southern and central Africa
Color
Black, Brownish, Brown
Greenish, Blue, Colorless, Green, Yellow
Streak
Brown
Greenish, gray
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
4.5-4.83.17-3.24
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
None, parting may develop along {111}
(0001) indistinct
Mohs Hardness
5.59-9.5
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
SiCArthur Thomas , Gemstones (2009)
Luster
-
Adamantine
Pleochroism
none.
-
Dispersion
0.040.10
0.005
1
👆🏻
Transparency
-
-
Refractive Index
2.08-2.162.648-2.691
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
6H polytype
Birefringence
-99990.043
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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-
Cardiovascular
-
-
Respiratory
Poor
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Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Clarity
Healing
Emotional healing
-
Qualities Associated
Protection
Creativity