1 Astrology
1.1 Origin
1.2 Color
Blue, Greenish, Greenish, Blue
Black, Green, Brown, Red, Greenish, Yellow, Brown, Green, Yellow, orange
1.3 Streak
Blue, White
Yellow, Green, Greenish, Yellow
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
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Brittle, Metallic, Brittle, Metallic
Brittle, Metallic, Brittle, Metallic
2.6 Cleavage
Good on {010}
distinct; good on {0001}
2.7 Mohs Hardness
2.8 Chemical Composition
Ca(VO)Si4O10•4(H2O)
PbFe+++3(AsO4)(SO4)(OH)6
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous, Resinous
3.2 Pleochroism
Visible: X=Z= colorless Y= blue
visible
3.3 Dispersion
3.4 Transparency
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3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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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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