1 Astrology
1.1 Origin
Russia
Southern and central Africa
1.2 Color
Black, Violet, Blue, Green
Colorless, Blue, Brown, Green, gray
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
1.7 Energy
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1.8 How to Wear?
1.8.1 Finger
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1.8.2 Ring Metal
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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
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2.3 Durability
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2.4 Specific Gravity
3.22-3.403.90-4.00
1
7.18
2.5 Fracture
2.6 Cleavage
1,2 prismatic.
Perfect on {001}, good on {210}, poor on {010}
2.7 Mohs Hardness
2.8 Chemical Composition
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous
Vitreous, Pearly
3.2 Pleochroism
Common trichroism: light green
Weakly trichroiC
3.3 Dispersion
3.4 Transparency
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3.5 Refractive Index
1.668-1.7031.619-1.635
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
0.024-0.0300.004-0.012
0
0.296
3.9 Clarity
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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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