Topic summary
Chrysocolla
Chrysocolla ( ) is a hydrouscopperphyllosilicatemineral and mineraloid with the formulaCu
2 – xAl
x(H
2Si
2O
5)(OH)
4⋅nH
2O (x < 1) or (Cu, Al)
2H
2Si
2O
5(OH)
4⋅nH
2O).
The structure of the mineral has been questioned, as a 2006 spectrographic study suggest material identified as chrysocolla may be a mixture of the copper hydroxide spertiniite and chalcedony.
Chrysocolla typically forms amorphously.