1 Astrology
1.1 Origin
Not Available
Southern and central Africa
1.2 Color
Black, Blue, Yellow, Green
Black, Brownish, White, Brown
1.3 Streak
Grey, Greenish, Brown
Reddish, Black
1.4 For which Rashi?
Not Available
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1.5 Planet
Not Available
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.28-3.444.76-5.03
1
7.18
2.5 Fracture
Uneven, Splintery, Brittle
Conchoidal, Brittle
2.6 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
None
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Vitreous, Silky
Not Available
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Not Available
Translucent
3.5 Refractive Index
1.680-1.698Not Available
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.005-0.008Not Available
0
0.296
3.9 Clarity
Not Available
Translucent
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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