1 Astrology
1.1 Origin
1.2 Color
Colorless, Green, Black, Brown, Red, Greenish, Yellow, gray
Black
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
1.12 Birthstone
1.12.1 Planetary
Not Available
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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
Not Available
2.3 Durability
Not Available
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2.4 Specific Gravity
3.70-4.101.19-1.35
1
7.18
2.5 Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Not Available
3 Optical Properties
3.1 Luster
Adamantine, Resinous
Waxy
3.2 Pleochroism
Not Available
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.88-1.941.640-1.680
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.057Not Available
0
0.296
3.9 Clarity
Transparent
Gemmological Tables (2004) More from other references
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available