1 Astrology
1.1 Origin
Australia
Southern and central Africa
1.2 Color
Red, White, gray, Black
White, Colorless, Blue, Red, Green, Yellow, Violet
1.3 Streak
Brownish, Black
Not Available
1.4 For which Rashi?
Not Available
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1.5 Planet
Not Available
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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
Not Available
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1.10 Not to wear with
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
Not Available3.95-4.10
1
7.18
2.5 Fracture
Conchoidal, Uneven
Uneven, Uneven, Gems, Sixth Edition (2006)
2.6 Cleavage
{1010} Imperfect, {0001} Imperfect
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
Not Available
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3.2 Pleochroism
Strong (reflected light)
Not Available
3.3 Dispersion
3.4 Transparency
Not Available
Transparent, Translucent
3.5 Refractive Index
Not Available1.757-1.780
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.007-0.010
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
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
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4.4 Qualities Associated
Not Available
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