Origin
Southern and central Africa
Southern and central Africa
Color
Black, Brownish, White, Brown
Violet, Black
Streak
Reddish, Black
gray, White
For which Rashi?
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-
Planet
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-
Element of Planets
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Energy
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-
How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
4.76-5.033.17
1
7.18
👆🏻
Fracture
Conchoidal
-
Cleavage
None
None
Mohs Hardness
5.5-6.57
2
10
👆🏻
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
-
Vitreous
Pleochroism
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Strong: pale lavender dark blueAnthony et al
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
Translucent
TranslucentAnthony et al, Translucent
Refractive Index
-9999-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Translucent
TranslucentAnthony et al
Physical
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
Insight
Empowerment
Healing
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Emotional healing
Qualities Associated
Grounding
Emotional Healing