1 Astrology
1.1 Origin
Southern and central Africa, Sixth Edition (2006)
Southern and central Africa
1.2 Color
Blue, Green, Blue, Brown
Green, Yellow, Red, Blue
1.3 Streak
1.4 For which Rashi?
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
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1.8 Energy
1.9 Deities
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
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Not Available
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
Cu2H2Si2O5(OH)4
NaFeS2•2(H2O)
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous, Silky
3.2 Pleochroism
AbsentWalter Schumann
Extreme
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
3.6 Optic Character
Not Available
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3.7 Crystal System
monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
3.8 Birefringence
0.023-0.050Not Available
0
0.296
3.9 Clarity
Gemmological Tables (2004) More from other references
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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