1 Astrology
1.1 Origin
Sri Lanka, India, Brazil
USA
1.2 Color
Green, Brown, Brown, Colorless, Green, gray, Yellow
White, Brown, pink
1.3 Streak
Brownish, White, Brownish, White
White
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
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.55-3.733.396-3.443
1
7.18
2.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Brittle, Metallic
2.6 Cleavage
none
[001] good, [100] and [110] fair
2.7 Mohs Hardness
2.8 Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Greasy, Vitreous
Vitreous, Resinous, Greasy
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Handbook of mineralogy (2001)
3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.020Not Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Handbook of mineralogy (2001)
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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