1 Astrology
1.1 Origin
Southern and central Africa
Australia, Southern and central Africa
1.2 Color
Colorless, Brown, Greenish, gray
White
1.4 Streak
1.5 For which Rashi?
Not Available
Not Available
1.7 Planet
Not Available
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1.8 Element of Planets
Not Available
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1.9 How to Wear?
1.9.1 Finger
Not Available
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1.9.2 Ring Metal
Not Available
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1.10 Energy
Not Available
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1.11 Deities
Not Available
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1.12 Not to wear with
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1.13 Powers
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1.14 Birthstone
1.14.1 Planetary
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1.14.2 Talisman
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2 Physical Properties
2.1 Tenacity
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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
2.62-2.673.00-3.15
1
7.18
2.8 Fracture
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Not Available
2.9 Cleavage
From the Greek, oligos and kasein, little cleavage.
Not Available
2.10 Mohs Hardness
2.12 Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
Not Available
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004)
Translucent
3.5 Refractive Index
1.538-1.5501.627-1.645
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Not Available
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3.8 Birefringence
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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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