1 Astrology
1.1 Origin
Southern and central Africa
Sri Lanka
1.2 Color
1.3 Streak
Not Available
Not Available
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
Not Available
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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
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.62-3.683.70-4.10
1
7.18
2.5 Fracture
Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Not Available
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe,Zn)Al 6BeO 12Ulrich Henn and Claudio C.
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Vitreous
Subadamantine, Vitreous
3.2 Pleochroism
Not Available
Not Available
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004)
Translucent
3.5 Refractive Index
1.719-1.7391.855-1.895
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.014-0.016Not Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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