Origin
China, Kenya, Russia, Sri Lanka, Zambia
Southern and central Africa
Color
Red, pink, Black, orange
Black, Brownish, Brown
Streak
White
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
insoluble in water
-
Durability
-
-
Specific Gravity
3.62-3.874.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
None
None, parting may develop along {111}
Mohs Hardness
7-7.55.5
2
10
👆🏻
Chemical Composition
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Fe++Cr2O4
Luster
Greasy, Vitreous
-
Pleochroism
None
none.
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.720-1.7562.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
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-
Cardiovascular
-
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Passion
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Energy
Protection