1 Astrology
1.1 Origin
Southern and central Africa
Canada
1.2 Color
Colorless, Brown, Greenish, gray
White, Reddish, gray, Brown, Brownish
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
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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
Not Available
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1.9 Deities
Not Available
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1.10 Not to wear with
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.62-2.672.55-2.65
1
7.18
2.5 Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
From the Greek, oligos and kasein, little cleavage.
[1010] Poor
2.7 Mohs Hardness
2.8 Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Greasy
3.2 Pleochroism
Not Available
Not Available
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004)
Transparent, Translucent
3.5 Refractive Index
1.538-1.5501.529-1.547
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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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
Not Available
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