1 Astrology
1.1 Origin
Sri Lanka, Burma, USA, Russia
Southern and central Africa, Brazil, China, Zimbabwe, Switzerland, Zimbabwe, Switzerland
1.2 Color
Yellow, Brown, pink, Colorless
Green
1.3 Streak
1.4 For which Rashi?
1.5 Planet
Not Available
Mars, Venus
1.6 Element of Planets
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
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
3.46-3.502.85-3.20
1
7.18
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Not Available
2.6 Cleavage
Not Available
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2.7 Mohs Hardness
2.8 Chemical Composition
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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3 Optical Properties
3.1 Luster
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3.2 Pleochroism
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
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3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Gemstones of the world (2001)
3.5 Refractive Index
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.036-0.042Not Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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