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Minerals - Chalcomenite | TerraCollect
Mineral - Chalcomenite
Chalcomenite
CuSeO₃ · 2H₂O
Links
Chemical Properties
Mineral Class
Oxides and Hydrxides
Toxicity
low
Formula
CuSeO₃ · 2H₂O
Unit Cell
a=6.67 b=9.16 c=7.40 Z=4
Physical Properties
Hardness
2 - 2.5
Streak
blue
turquoise
Density
Optical Properties
Color
blue
Birefringence
0.020
Luster
Vitreous,
Resinous
Transparency
translucent,
transparent
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Composition
Elements
Mass
SeOâ‚‚
48.12
CuO
35.40
Hâ‚‚O
15.30
Argentinia
Normal (2-3,5)
Cleavage
Fracture
conchoidal
Tenacity
Brittle
orthorhombic-disphenoidal - 222
Space Group
P2
1
2
1
2
1
(19)
Habit
tufty,
crusty,
spherical,
acicular,
kidney-shaped,
prismatic,
prismatic,
radial,
tabular
Formation
Secondary, in the oxidation zone of supergene Cu-Se deposits
Paragenesis
Twinning
Rarity
Very rare
Synonyms
Chalcomenite
