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Minerals - Veszelyite | TerraCollect
Mineral - Veszelyite
Veszelyite
(Cu,Zn)₂Zn(PO₄)₂ · 2H₂O
Chemical Properties
Mineral Class
Phosphates
Toxicity
none
Formula
(Cu,Zn)₂Zn(PO₄)₂ · 2H₂O
Unit Cell
a=9.83 b=10.22 c=7.53 β=103° Z=4
Physical Properties
Hardness
3.5 - 4
Streak
blue
Density
Normal (2-3,5)
Optical Properties
Color
green
blue
Birefringence
0.055
Luster
Vitreous
Transparency
translucent,
transparent
Pleochroism
Geomineralogical Properties
Crystal System
monoclinic
Composition
Elements
Mass
Pâ‚‚Oâ‚…
18.43
FeO
0.06
NiO
0.01
CuO
37.82
ZnO
26.69
PbO
0.05
Hâ‚‚O
16.87
Romania (Palache et al. 1952)
Cleavage
Distinct after {001} and {110}
Fracture
Tenacity
Brittle
Point Group
monoclinic-prismatic - 2/m
Space Group
P2
1
/c (14)
Habit
book-shaped,
crusty,
spherical,
massive,
prismatic,
rosette,
spear-shaped,
tabular
Formation
Secondary in the oxidation zone of copper- and zinc-bearing deposits, primarily through the reaction of metal-bearing hydrothermal solutions with phosphate-bearing country rock or through the alteration of primary phosphates.
Paragenesis
Twinning
Rarity
Rarely
Synonyms
Veszelyite
