Aluminocopiapite (IMA symbol: Acpi) is an aluminium iron sulfate mineral with the chemical formula AlFe(SO)(OH)·20HO. Its type localities are Fortymile River in Alaska and the San Rafael Swell in Utah.Aluminocopiapite on mindat.org The mineral is named after the city of Copiapó in Chile.
References
External links
Aluminocopiapite data sheet Aluminocopiapite on the Handbook of Mineralogy