Origin
Southern and central Africa
Southern and central Africa
Color
Black, Brownish, Brown
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Brown
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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
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Solubility
-
-
Durability
-
-
Specific Gravity
4.5-4.82.55-2.70
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
None, parting may develop along {111}
None
Mohs Hardness
5.56.5-7
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Luster
-
Waxy
Pleochroism
none.
-
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
2.08-2.161.530-1.543
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.003-0.009
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
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Cardiovascular
-
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
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Psychology
Vitality
Peace
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Balance