1 Astrology
1.1 Origin
Southern and central Africa, violet, blue, violet, blue
Southern and central Africa, Zimbabwe, South Africa
1.2 Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Green, Blue, Green, Blue, Green
1.3 Streak
White
Greenish, White, Greenish, White, Greenish, White
1.4 For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Virgo
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
Isis
Gaia, Goddess, The All
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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Decomposed by acids
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
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2.6 Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Perfect on {010}
2.7 Mohs Hardness
2.8 Chemical Composition
AlAl6O3BSi3O18
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
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
X: very light bluish green; Y and Z: brilliant bluish green
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
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3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Translucent
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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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