1 Astrology
1.1 Origin
China, Kenya, Russia, Sri Lanka, Zambia
Southern and central Africa
1.2 Color
Red, pink, Black, orange
Green, Blue, Yellow, White
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
insoluble in water
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
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2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Mg 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Greasy, Vitreous
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3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
TranslucentAnthony et al, Handbook of mineralogy (2001)
3.5 Refractive Index
1.720-1.7561.538-1.560
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
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0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentAnthony et al
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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