1 Astrology
1.1 Origin
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Southern and central Africa
1.2 Color
Brown, Yellow, Blue, Red
Green
1.3 Streak
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Greenish, White
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
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Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
2.6 Cleavage
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{110} Good, {110} Good
2.7 Mohs Hardness
2.8 Chemical Composition
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(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
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Weak: colorless -- very pale green -- very pale green
3.3 Dispersion
3.4 Transparency
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TranslucentAnthony et al, Handbook of mineralogy (2001)
3.5 Refractive Index
1.97-2.031.662-1.723
1
3.25
3.6 Optic Character
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3.7 Crystal System
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3.8 Birefringence
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0
0.296
3.9 Clarity
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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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