1 Astrology
1.1 Origin
Switzerland
Southern and central Africa, Brazil, China, Zimbabwe, Switzerland, Zimbabwe, Switzerland
1.2 Color
Brown, Brownish, Yellow, Black, Reddish
Green
1.3 Streak
White, gray
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1.4 For which Rashi?
1.5 Planet
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Mars, Venus
1.6 Element of Planets
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
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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
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
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2.6 Cleavage
Distinct on {010}
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2.7 Mohs Hardness
2.8 Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
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3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
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3.3 Dispersion
3.4 Transparency
Blue Chart Gem Identification (2010) More from other references
Gemstones of the world (2001)
3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.009-0.015Not Available
0
0.296
3.9 Clarity
Blue Chart Gem Identification (2010) More from other references
Gemstones of the world (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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