1 Astrology
1.1 Origin
USA, Southern and central Africa, green, blue, China, India, USA, Italy, green, blue, China, India, USA, Italy
Not Available
1.2 Color
White, Yellow
Green, Yellow, Brown, White, Colorless, Blue, Brownish, Black
1.3 Streak
1.4 For which Rashi?
1.5 Planet
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
1.9 Deities
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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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2.2 Solubility
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous
2.6 Cleavage
Not Available
[110] perfect, [101] good, [010] distinct
2.7 Mohs Hardness
2.8 Chemical Composition
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Greasy, Silky
Vitreous, Resinous, Pearly
3.2 Pleochroism
AbsentWalter Schumann
Weak
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.560-1.5711.518-1.561
1
3.25
3.6 Optic Character
Not Available
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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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