1 Astrology
1.1 Origin
Afghanistan, Southern and central Africa
Canada
1.2 Color
Blue, Greenish, Violet
Brown
1.3 Streak
Blue, White
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1.4 For which Rashi?
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Sagittarius
1.5 Planet
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1.6 Element of Planets
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Water, Earth
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
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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
2.3 Durability
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2.5 Specific Gravity
3.4 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
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3.5 Cleavage
Imperfect on {110}
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3.6 Mohs Hardness
3.9 Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
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4 Optical Properties
4.1 Luster
4.2 Pleochroism
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4.4 Dispersion
5.5 Transparency
Gemmological Tables (2004) More from other references
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5.6 Refractive Index
1.500Not Available
1
3.25
5.7 Optic Character
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5.8 Crystal System
5.9 Birefringence
Not AvailableNot Available
0
0.296
5.10 Clarity
Gemmological Tables (2004) More from other references
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6 Benefits
6.1 Physical
6.1.1 Neurological
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6.1.2 Cardiovascular
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6.1.3 Respiratory
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6.1.4 Reproductive
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6.1.5 Digestive
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6.2 Psychology
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6.3 Healing
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6.4 Qualities Associated
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