1 Astrology
1.1 Origin
Southern and central Africa
Russia, green, violet, Yellow, blue, green, violet, Yellow, blue
1.2 Color
Black, Reddish, gray
Black, Violet, Blue, Green
1.3 Streak
1.4 For which Rashi?
Not Available
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
1.5 Planet
1.6 Element of Planets
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
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
5.51-5.643.22-3.40
1
7.18
2.5 Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Distinct on {10 1 1}
1,2 prismatic.
2.7 Mohs Hardness
2.8 Chemical Composition
Ag 3AsS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Moderate; cochineal-red to blood-red
Common trichroism: light green
3.3 Dispersion
2.5 Transparency
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
Gems, Sixth Edition (2006)
2.6 Refractive Index
2.792-3.0871.668-1.703
1
3.25
2.7 Optic Character
Not Available
Not Available
2.8 Crystal System
2.9 Birefringence
0.295-0.2960.024-0.030
0
0.296
2.13 Clarity
OpaqueUlrich Henn and Claudio C. Milisenda
Gems
3 Benefits
3.1 Physical
3.1.1 Neurological
Not Available
Not Available
3.1.2 Cardiovascular
Not Available
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3.1.3 Respiratory
Not Available
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3.1.4 Reproductive
Not Available
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3.1.5 Digestive
Not Available
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3.3 Psychology
Not Available
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4.1 Healing
Not Available
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4.3 Qualities Associated
Not Available
Not Available