Paratacamite is a mineral in the halide minerals category. Its chemical formula is Cu3(Cu,Zn)(OH)6Cl2. Its name is derived from its association with atacamite. Paratacamite was first described by Herbert Smith in 1906. The zincian endmember Cu3(Zn)(OH)6Cl2 is called herbertsmithite, and paratacamite is polymorphous with botallackite and atacamite.