1 Astrology
1.1 Origin
Mexico, Canada
Southern and central Africa
1.2 Color
Colorless, White, Blue, Red, Reddish, Brownish
Colorless, Brown, Greenish, gray
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
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1.8 Energy
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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
2.2 Solubility
2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Uneven, Brittle
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
2.6 Cleavage
Perfect on [100], [010], [001]
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
Visible in colored crystals
Not Available
3.3 Dispersion
3.4 Transparency
Not Available
Gemmological Tables (2004)
3.5 Refractive Index
3.6 Optic Character
Not Available
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3.7 Crystal System
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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