1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
Not Available
1.4 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Blue
1.6 Streak
1.7 For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
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1.9 Planet
1.11 Element of Planets
1.13 How to Wear?
1.13.1 Finger
Not Available
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1.14.1 Ring Metal
Not Available
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1.16 Energy
1.17 Deities
1.18 Not to wear with
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1.19 Powers
1.20 Birthstone
1.20.1 Planetary
Not Available
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1.20.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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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
3.26-3.41Not Available
1
7.18
2.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Not Available
2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
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2.7 Mohs Hardness
2.8 Chemical Composition
AlAl6O3BSi3O18
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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
Transparent
3.5 Refractive Index
1.669-1.723Not Available
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
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3.8 Birefringence
0.011-0.037Not Available
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
Not Available
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