1 Astrology
1.1 Origin
Southern and central Africa
Turkey
1.2 Color
Violet, Blue, Red, Yellow, Brown, gray
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
1.3 Streak
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
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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
2.3 Durability
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2.4 Specific Gravity
3.90-4.053.30-3.40
1
7.18
2.5 Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Conchoidal, Brittle, Conchoidal
2.6 Cleavage
None – parting in 3 directions
{010} perfect, {110} distinct, {100} in traces
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
Adamantine, Vitreous
Pearly
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent
3.5 Refractive Index
1.758-1.7801.702-1.750
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Gemmological Tables (2004) More from other references
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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