1 Astrology
1.1 Origin
Southern and central Africa
Canada, Columbia, Brazil, Burma, Russia, blue
1.2 Color
Colorless, Greenish, Colorless, Green, gray, Yellow
Blue, White, pink, gray, Green
1.3 Streak
1.4 For which Rashi?
Not Available
Sagittarius
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
Not Available
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1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.21-3.382.15-2.40
1
7.18
2.5 Fracture
Irregular/uneven, Uneven
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
2.6 Cleavage
Perfect on {001}
Poor on {110}
2.7 Mohs Hardness
2.8 Chemical Composition
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Na8Al6Si6O24Cl2
3 Optical Properties
3.1 Luster
3.2 Pleochroism
StrongArthur Thomas
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Transparent
Transparent, Translucent, Opaque
3.5 Refractive Index
1.670-1.7341.478-1.488
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.006-0.011Not Available
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available