1 Astrology
1.1 Origin
Southern and central Africa
Brazil
1.2 Color
Colorless, Green, Yellow, White, Colorless, Green, Yellow, White
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.23-3.262.65-2.90
1
7.18
2.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Gemstones (2009), Flexible Flexible fragments.
2.6 Cleavage
Perfect on {010} imperfect on {100}
{001} Perfect
2.7 Mohs Hardness
2.8 Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
colorless.
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.635-1.6711.534-1.601
1
3.25
3.6 Optic Character
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3.7 Crystal System
Orthorhombic
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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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