1 Astrology
1.1 Origin
Canada
Southern and central Africa
1.2 Color
Reddish, White, Violet, gray, Black, Reddish, White, Violet, gray, Black
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
1.4 For which Rashi?
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
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2.6 Cleavage
{100} Good, {010} Good, {001} Good
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2.7 Mohs Hardness
2.8 Chemical Composition
CoAsSAnthony et al , Handbook of mineralogy (2001)
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3 Optical Properties
3.1 Luster
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3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Gems
TranslucentWalter Schumann, Gemstones of the world (2001)
3.5 Refractive Index
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1
3.25
3.6 Optic Character
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3.7 Crystal System
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: P ca21
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3.8 Birefringence
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0
0.296
3.9 Clarity
Gems
TranslucentWalter Schumann
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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