1 Astrology
1.1 Origin
Canada, Southern and central Africa, Sri Lanka
Not Available
1.2 Color
Brown
Black, Blue, Yellow, Green
1.3 Streak
Not Available
Grey, Greenish, Brown
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
Pearl, Moonstone, Pearl, Moonstone
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1.11 Powers
Wealth, Money
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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
3.55-3.733.28-3.44
1
7.18
2.5 Fracture
Uneven
Uneven, Splintery, Brittle
2.6 Cleavage
Not Available
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
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3 Optical Properties
3.1 Luster
Not Available
Vitreous, Silky
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004)
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3.5 Refractive Index
1.742-1.7481.680-1.698
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
Not Available0.005-0.008
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available
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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