Tags: Chemical Substance, Mineral.
Chrysocolla is a hydrated copper cyclosilicate mineral with formula: Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x<1) or (CuAl)2H2Si2O5(OH)4·nH2O. The structure of the mineral has been questioned as spectrographic studies suggest material identified as chrysocolla may be a mixture of the copper hydroxide spertiniite and chalcedony.
