1 Astrology
1.1 Origin
Canada, USA, Southern and central Africa
Sri Lanka
1.2 Color
1.3 Streak
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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
3.25-3.503.91-4.73
1
7.18
2.5 Fracture
Uneven, Uneven, Gemstones of the world (2001) More from other references
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
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1.1 Mohs Hardness
Not Available6.5-7.5
2
10
1.6 Chemical Composition
Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
2 Optical Properties
2.1 Luster
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2.2 Pleochroism
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2.3 Dispersion
2.4 Transparency
2.5 Refractive Index
1.700-1.7251.790-2.015
1
3.25
2.6 Optic Character
2.7 Crystal System
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2.8 Birefringence
0.002-0.0120.005-0.055
0
0.296
2.9 Clarity
3 Benefits
3.1 Physical
3.1.1 Neurological
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3.1.2 Cardiovascular
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3.1.3 Respiratory
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3.1.4 Reproductive
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3.1.5 Digestive
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3.2 Psychology
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3.3 Healing
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3.4 Qualities Associated
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