1 Astrology
1.1 Origin
1.3 Color
Colorless, White, Brownish, Reddish, Black, Brownish, Black, Colorless, gray, White, Reddish, Brown
Blue
2.2 Streak
White
Greenish, Blue, Green
2.4 For which Rashi?
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2.5 Planet
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2.7 Element of Planets
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2.8 Energy
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2.9 How to Wear?
2.9.1 Finger
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2.9.2 Ring Metal
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2.10 Deities
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2.12 Not to wear with
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2.13 Powers
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2.15 Birthstone
2.15.1 Planetary
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2.16.1 Talisman
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3 Physical Properties
3.1 Tenacity
3.2 Solubility
3.3 Durability
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3.4 Specific Gravity
5.7 Fracture
Uneven
Uneven, UnevenArthur Thomas, Gemstones (2009)
5.8 Cleavage
None observed
[001] perfect
5.9 Mohs Hardness
6.7 Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
Pb 26Ag 10Cu 24Cl 62(OH) 48 · 3H 2OWalter Schumann , Gemstones of the world (2001) More from other references
7 Optical Properties
7.1 Luster
Vitreous, Greasy, Pearly
Vitreous, Pearly
7.2 Pleochroism
7.3 Dispersion
8.10 Transparency
Gemmological Tables (2004) More from other references
Transparent
8.11 Refractive Index
9.5 Optic Character
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9.6 Crystal System
9.7 Birefringence
10.5 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
11 Benefits
11.1 Physical
11.1.1 Neurological
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11.1.2 Cardiovascular
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11.1.3 Respiratory
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11.1.4 Reproductive
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11.1.5 Digestive
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11.2 Psychology
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11.3 Healing
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11.4 Qualities Associated
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