Origin
Southern and central Africa
USA
Color
Green
Black, Red, Brown
Streak
Greenish, White, Greenish, White
Brown, Red
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
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Energy
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
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.9
3.19-3.23
Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Cleavage
{???} Indistinct
{110} good
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Not Available
x=yellow-orange
Dispersion
Not Available
Not Available
Transparency
Translucent
Translucent
Refractive Index
1.612
1.692-1.734
Optic Character
Not Available
Not Available
Crystal System
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1
monoclinic
Birefringence
Not Available
0.0294-0.0452
Clarity
Translucent
Translucent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
Not Available