1 Astrology
1.1 Origin
Madagascar
Southern and central Africa
1.2 Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Colorless, Brown, Greenish, gray
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
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1.7.2 Ring Metal
Not Available
Not Available
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
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
Not Available2.62-2.67
1
7.18
2.5 Fracture
Not Available
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
2.6 Cleavage
Not Available
From the Greek, oligos and kasein, little cleavage.
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
Not Available
3.3 Dispersion
3.4 Transparency
Not Available
Gemmological Tables (2004)
3.5 Refractive Index
Not Available1.538-1.550
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Not Available
Not Available
3.8 Birefringence
Not Available0.010
0
0.296
3.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
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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