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Minerals - Chalcanthite | TerraCollect
Mineral - Chalcanthite
Chalcanthite
CuSO₄ · 5H₂O
Chemical Properties
Mineral Class
Sulphates
Toxicity
middle
Formula
CuSO₄ · 5H₂O
Unit Cell
a=6.11 b=10.67 c=5.95 α=97° β=107° γ=77° Z=2
Physical Properties
Hardness
2.5
Streak
white
Density
Normal (2-3,5)
Optical Properties
Color
blue
Birefringence
0.029
Luster
Vitreous,
Resinous
Transparency
translucent,
transparent
Pleochroism
Geomineralogical Properties
Crystal System
triclinic
Point Group
Composition
Elements
Mass
SO₃
32.13
Fe₂O₃
0.76
CuO
31.40
Hâ‚‚O
35.90
DR Congo (Palache et al. 1952)
Groups and Members
Chalcanthite-Group
Karten-Ebenen
Geologische Karte
Satelliten Karte
Cleavage
Imperfect after {1
1
0}, indistinct after {111}
Fracture
conchoidal
Tenacity
Brittle
triclinic-pinacoidal -
1
Space Group
P
1
(2)
Habit
crusty,
prismatic,
tabular
Formation
Secondary, in the oxidation zone of copper deposits
Paragenesis
Twinning
Rarity
Common
Synonyms
Chalcanthite
