Home Chalcophyllite
VII - Arsenates		 Crystal habit of Chalcophyllite Chalcophyllite
 
Name   Chalcophyllite
Chemistry   (CuAl)3[(OH)4|(AsO4,SO4)]·6H2O
Hardness   2
Lustre   vitreous, pearly
Colour   emerald green, grass green or bluish green
Streak   pale green 
Density [g/cm3]   2.4 - 2.7
Crystal habit   trigonal, crystals tabular, platy
Cleavage, Fracture   [0001] perfect, fracture uneven
other characteristics and occurrences   secondary mineral of the oxidation zone of copper deposits together with cuprite (Cu2O), malachite (Cu2[(OH)2|CO3]) and azurite (Cu3[(OH)2|CO3]2)
   
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