1 Astrology
1.1 Origin
Southern and central Africa
India, Brazil, China, Australia
1.2 Color
Blue, Colorless, White
Green, Red, Yellow
1.3 Streak
1.4 For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
All
1.5 Planet
1.6 Element of Planets
1.7 Energy
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1.8 How to Wear?
1.8.1 Finger
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1.8.2 Ring Metal
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1.9 Deities
1.10 Not to wear with
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1.11 Powers
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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3.2 Solubility
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3.5 Durability
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3.7 Specific Gravity
5.7 Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
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5.10 Cleavage
5.12 Mohs Hardness
6.8 Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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7 Optical Properties
7.1 Luster
7.2 Pleochroism
NilArthur Thomas
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7.3 Dispersion
9.5 Transparency
Gemmological Tables (2004) More from other references
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9.6 Refractive Index
1.583-1.6081.53-1.54
1
3.25
9.7 Optic Character
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9.8 Crystal System
9.9 Birefringence
9.10 Clarity
Gemmological Tables (2004) More from other references
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10 Benefits
10.1 Physical
10.1.1 Neurological
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10.1.2 Cardiovascular
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10.1.3 Respiratory
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10.1.4 Reproductive
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10.1.5 Digestive
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10.2 Psychology
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10.3 Healing
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10.4 Qualities Associated
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