Origin
A primary mineral in hydrothermal veins, stockworks, disseminations
Southern and central Africa
Color
Yellow, Green, Black
Yellow, Blue, Black, Green, gray
Streak
Yellow, Green, Black, Greenish, Black
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
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Element of Planets
Not Available
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Energy
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
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Specific Gravity
4.1-4.3
3.43-3.44
Fracture
Uneven, Brittle, Metallic
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Indistinct on {011}
None Observed
Mohs Hardness
3.5-4
6.5-7
Chemical Composition
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Not Available
Vitreous
Pleochroism
AbsentWalter Schumann
visible
Dispersion
Not Available
Not Available
Transparency
Handbook of mineralogy (2001)
Gemmological Tables (2004) More from other references
Refractive Index
Not Available
1.696-1.702
Optic Character
Not Available
Not Available
Crystal System
tetragonal
Triclinic
Birefringence
Not Available
0.005
Clarity
Handbook of mineralogy (2001)
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
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Healing
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Qualities Associated
Not Available
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