Origin
Southern and central Africa
Southern and central Africa
Color
Colorless, White, gray, Brown, pink
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
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-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.05-3.084.5-4.8
1
7.18
👆🏻
Fracture
Uneven, Irregular, Conchoidal
Uneven
Cleavage
None
None, parting may develop along {111}
Mohs Hardness
6.55.5
2
10
👆🏻
Chemical Composition
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Fe++Cr2O4
Luster
Vitreous
-
Pleochroism
-
none.
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
Semitransparent
-
Refractive Index
-99992.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TranslucentAnthony et al
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Physical
Neurological
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-
Cardiovascular
Supports heart health
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Empathy
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Protection