1 Astrology
1.1 Origin
Switzerland
Southern and central Africa, Burma, Tanzania, India, Sri Lanka
1.2 Color
Brown, Brownish, Yellow, Black, Reddish
Yellow, White, Green, Brown, Greenish, gray
1.3 Streak
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
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
2.6 Cleavage
Distinct on {010}
Good/distinct on [210]
2.7 Mohs Hardness
2.8 Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Resinous
Vitreous, Pearly
3.2 Pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
Pale green to pale orange
3.3 Dispersion
3.4 Transparency
Blue Chart Gem Identification (2010) More from other references
Transparent, Translucent
3.5 Refractive Index
1.736-1.7621.650-1.680
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.009-0.0150.009-0.011
0
0.296
3.9 Clarity
Blue Chart Gem Identification (2010) More from other references
Transparent
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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