1 Astrology
1.1 Origin
Pakistan
Southern and central Africa
1.2 Color
White, Green, Blue, Yellow, Brownish, Red, Blue, gray, Yellow, White
Black, Reddish, gray
1.3 Streak
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
Irregular
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.6 Cleavage
Perfect on {0001}
Distinct on {10 1 1}
2.7 Mohs Hardness
2.8 Chemical Composition
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Adamantine
3.2 Pleochroism
Not Available
Moderate; cochineal-red to blood-red
3.3 Dispersion
3.4 Transparency
TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
3.5 Refractive Index
1.56-1.602.792-3.087
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.010-0.0200.295-0.296
0
0.296
3.9 Clarity
TransparentMichael OâDonoghue
OpaqueUlrich Henn and Claudio C. Milisenda
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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