1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
Russia, Madagascar, Brazil
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Green, Green, White, Blue
1.3 Streak
1.4 For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Virgo
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.26-3.412.55-2.57
1
7.18
2.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Uneven, Uneven, Gems, Sixth Edition (2006)
2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
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
WeakMichael OâDonoghue
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Translucent, Translucent to opaque
3.5 Refractive Index
1.669-1.7231.522-1.530
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.011-0.0370.008-0.010
0
0.296
3.9 Clarity
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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