1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
USA, Mexico, Austria, India, Southern and central Africa, Australia, Argentina, Mexico, Spain, Argentina, Mexico, Spain
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Red, Brown, rose
1.3 Streak
1.4 For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Scorpio, Leo, Scorpio, Leo, Scorpio, Leo
1.5 Planet
1.6 Element of Planets
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
1.9 Deities
1.10 Not to wear with
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1.11 Powers
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
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Uneven, Conchoidal, Conchoidal to uneven, Brittle
2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
On {10 1 1} perfect; parting on {10 1 2}
2.7 Mohs Hardness
2.8 Chemical Composition
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Weak
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Transparent, Opaque, Transparent to nearly opaque
3.5 Refractive Index
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.011-0.0370.208-0.220
0
0.296
3.9 Clarity
Translucent
Transparent to nearly opaque
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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