1 Astrology
1.1 Origin
Russia, Canada, Australia, India, Brazil
Austria, Spain, Russia, Canada, Australia
1.2 Color
Red, Violet, Blue, Green, Grey
Colorless, Brownish, Yellow, Green, gray, 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
Not Available3.7-3.9
1
7.18
2.5 Fracture
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Conchoidal, Brittle
2.6 Cleavage
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{001} perfect; {111} imperfect, may exhibit parting on , {011}
2.7 Mohs Hardness
2.8 Chemical Composition
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MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
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3.3 Dispersion
3.4 Transparency
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TransparentWalter Schumann, Gemstones of the world (2001) More from other references
3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
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0
0.296
3.9 Clarity
Color grading system
TransparentWalter Schumann
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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