1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
Mexico
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
White, Colorless, gray, pink
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
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.26-3.412.71-2.72
1
7.18
2.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Handbook of mineralogy (2001), Difficult, Fibrous
2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{???} Good
2.7 Mohs Hardness
2.8 Chemical Composition
AlAl6O3BSi3O18
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
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
Gems, Sixth Edition (2006)
3.5 Refractive Index
1.669-1.7231.581-1.593
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
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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