1 Astrology
1.1 Origin
1.2 Color
Blue, Greenish, Greenish, Blue
Yellow, Brown, gray, Greenish
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
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.25-2.333.83-3.89
1
7.18
2.5 Fracture
Brittle, Metallic, Brittle, Metallic
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
2.6 Cleavage
Good on {010}
Perfect on {01 1 1}
2.7 Mohs Hardness
2.8 Chemical Composition
Ca(VO)Si4O10•4(H2O)
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Visible: X=Z= colorless Y= blue
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3.3 Dispersion
3.4 Transparency
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Transparent, Translucent
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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Transparent
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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