Origin
Southern and central Africa
-
Color
Black, Brownish, Brown
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
Brown
Blue, 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
Brittle
Solubility
-
Gelatinises in acids
Durability
-
-
Specific Gravity
4.5-4.82.4-2.5
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
None, parting may develop along {111}
Distinct on {110}
Mohs Hardness
5.55-6
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
-
Vitreous, Greasy
Pleochroism
none.
None
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
2.08-2.161.50
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
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Psychology
Vitality
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Communication