1 Astrology
1.1 Origin
Pakistan, Tanzania
Southern and central Africa
1.2 Color
Brown, gray, Green, Blue, rose, Red
White, Colorless, Blue, Red, Green, Yellow, Violet, pink, Violet
1.3 Streak
White, Colorless
Not Available
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
Not Available
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1.8 Energy
Not Available
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.20-3.502.27-2.33
1
7.18
2.5 Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
2.6 Cleavage
Perfect {010} imperfect {100}
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
Ca2Al3(SiO4)3(OH)
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Not Available
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Gemmological Tables (2004)
3.5 Refractive Index
1.685-1.7071.483-1.487
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
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3.8 Birefringence
0.006-0.018Not Available
0
0.296
3.9 Clarity
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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