1 Astrology
1.1 Origin
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China, Canada
1.2 Color
Brown, Yellow, White, Brown, Greenish, Yellow, White
Green, Green, Yellow, Brown, White, gray, Black
1.3 Streak
White, gray
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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
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven, Even, Yellow, White
Splintery, Granular, Splintery, Granular, Gemstones (2009)
2.6 Cleavage
Perfect on the {001}
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2.7 Mohs Hardness
2.8 Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Pearly
Vitreous, Greasy
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
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Translucent
3.5 Refractive Index
1.565-1.6251.600-1.627
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
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Translucent
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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