1 Astrology
1.1 Origin
Pakistan, Italy, Russia, China, Brazil, Switzerland, Madagascar, Austria, Canada
Southern and central Africa
1.2 Color
Reddish, Brown, Yellow, Green, Red, gray
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
Reddish, White
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.48-3.603.95-4.10
1
7.18
2.5 Fracture
Sub-Conchoidal, Conchoidal, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
2.6 Cleavage
Distinct on [110], parting on {221}
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2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
Subadamantine, Resinous
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3.2 Pleochroism
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
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3.3 Dispersion
3.4 Transparency
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Transparent, Translucent
3.5 Refractive Index
1.885-1.9901.757-1.780
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.105-0.1350.007-0.010
0
0.296
3.9 Clarity
Not Available
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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