1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
USA
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Red, Reddish, Violet, Blue, Green, Colorless, pink
1.3 Streak
1.4 For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
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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
3.26-3.412.74-2.76
1
7.18
2.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{010} Perfect, {001} Distinct
2.7 Mohs Hardness
2.8 Chemical Composition
AlAl6O3BSi3O18
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
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
Pale rose-red carmine-red colorlessAnthony et al
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Transparent
3.5 Refractive Index
1.669-1.7231.692-1.739
1
3.25
3.6 Optic Character
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3.7 Crystal System
Orthorhombic
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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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