1 Astrology
1.1 Origin
Russia, Madagascar, Brazil
Brazil
1.2 Color
Green, Green, White, Blue
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
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
1.9 Deities
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
2.55-2.572.65-2.90
1
7.18
2.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Gemstones (2009), Flexible Flexible fragments.
2.6 Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
{001} Perfect
2.7 Mohs Hardness
2.8 Chemical Composition
KAlSi3O8
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
WeakMichael OâDonoghue
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Translucent
3.5 Refractive Index
1.522-1.5301.534-1.601
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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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