1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
Sri Lanka, Southern and central Africa
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Blue
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
Not Available
1.7.2 Ring Metal
Not Available
Not Available
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
Not Available
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1.12.2 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
3.26-3.413.95-4.10
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}
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
AlAl6O3BSi3O18
Al 2O 3Ulrich Henn and Claudio C.
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, Translucent
3.5 Refractive Index
1.669-1.7231.757-1.780
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic
Not Available
3.8 Birefringence
0.011-0.0370.007-0.010
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
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