Origin
Southern and central Africa
Not Available
Color
Black, Brownish, White, Brown
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
Reddish, Black
Blue, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Energy
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Brittle
Solubility
Not Available
Gelatinises in acids
Durability
Not Available
Not Available
Specific Gravity
4.76-5.03
2.4-2.5
Fracture
Conchoidal, Brittle
Uneven, Conchoidal, Brittle
Cleavage
None
Distinct on {110}
Mohs Hardness
5.5-6.5
5-6
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
Not Available
Vitreous, Greasy
Pleochroism
Not Available
None
Dispersion
Not Available
Not Available
Transparency
Translucent
Not Available
Refractive Index
Not Available
1.50
Optic Character
Not Available
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Crystal System
Not Available
Isometric
Birefringence
Not Available
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Clarity
Translucent
Not Available
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available