1 Astrology
1.1 Origin
Southern and central Africa
USA
1.2 Color
Black, Brownish, Brown, Black, Brownish
Blue, Green, Blue, Green, Green
1.3 Streak
Brown
Blue, Greenish, White
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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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
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
2.6 Cleavage
None, parting may develop along {111}
[001] perfect; [100] distinct
2.7 Mohs Hardness
2.8 Chemical Composition
Fe++Cr2O4
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Not Available
Transparent
3.5 Refractive Index
2.08-2.161.818-1.909
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not Available0.091
0
0.296
3.9 Clarity
Not Available
Transparent
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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