1 Astrology
1.1 Origin
Tanzania, Sri Lanka, China
Pakistan
1.2 Color
Colorless
White, Green, Blue, Yellow, Brownish, Red, Blue, gray, Yellow, White
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
2.6 Cleavage
Imperfect/fair/absent
Perfect on {0001}
2.7 Mohs Hardness
2.8 Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Pearly
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
TransparentMichael OâDonoghue, Gems, Sixth Edition (2006)
3.5 Refractive Index
1.70-1.731.56-1.60
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Color grading system
TransparentMichael OâDonoghue
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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