1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
Not Available
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Green
1.3 Streak
1.4 For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Not Available
1.5 Planet
1.6 Element of Planets
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
1.9 Deities
1.10 Not to wear with
Not Available
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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
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.26-3.413.18-3.37
1
7.18
2.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Conchoidal
2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Perfect on 210
2.7 Mohs Hardness
2.8 Chemical Composition
AlAl6O3BSi3O18
Not Available
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
Not Available
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.669-1.7231.635-1.663
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic
Not Available
3.8 Birefringence
0.011-0.0370.0170-0.230
0
0.296
3.9 Clarity
Translucent
Gemmological Tables (2004) More from other references
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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