1 Astrology
1.1 Origin
Southern and central Africa
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1.2 Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
1.3 Streak
Not Available
Blue, White
1.4 For which Rashi?
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1.1 Planet
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1.3 Element of Planets
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1.4 How to Wear?
1.4.1 Finger
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1.5.1 Ring Metal
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1.7 Energy
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1.9 Deities
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1.11 Not to wear with
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1.13 Powers
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1.15 Birthstone
1.15.1 Planetary
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1.16.1 Talisman
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2 Physical Properties
2.1 Tenacity
2.4 Solubility
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Gelatinises in acids
2.5 Durability
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2.6 Specific Gravity
3.5 Fracture
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Uneven, Conchoidal, Brittle
3.7 Cleavage
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Distinct on {110}
3.8 Mohs Hardness
3.11 Chemical Composition
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
5 Optical Properties
5.2 Luster
5.4 Pleochroism
5.6 Dispersion
5.9 Transparency
Translucent
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5.10 Refractive Index
5.13 Optic Character
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5.15 Crystal System
5.16 Birefringence
0.003-0.009Not Available
0
0.296
6.2 Clarity
Translucent
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7 Benefits
7.1 Physical
7.1.2 Neurological
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7.1.4 Cardiovascular
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7.2.1 Respiratory
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7.3.1 Reproductive
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7.4.1 Digestive
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7.5 Psychology
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7.6 Healing
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7.7 Qualities Associated
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