1 Astrology
1.1 Origin
1.2 Color
Blue
Colorless, Colorless, Violet, White
1.3 Streak
Greenish, Blue, Green
White
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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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
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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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
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
1.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
[001] perfect
Perfect on {100}
1.7 Mohs Hardness
1.11 Chemical Composition
Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
2 Optical Properties
2.1 Luster
Vitreous, Pearly
Vitreous
2.2 Pleochroism
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2.3 Dispersion
2.5 Transparency
Transparent
Transparent, Translucent
2.6 Refractive Index
2.7 Optic Character
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2.8 Crystal System
2.9 Birefringence
2.10 Clarity
3 Benefits
3.1 Physical
3.1.1 Neurological
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3.1.2 Cardiovascular
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3.1.3 Respiratory
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3.1.4 Reproductive
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3.1.5 Digestive
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3.2 Psychology
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3.3 Healing
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3.4 Qualities Associated
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