ˈkōpēəˌpīt noun
( -s )
Etymology: German copiapit, from Copiapó, Chile, its locality + German -it -ite
: a mineral composed of a basic iron sulfate (Fe,Mg)Fe 4 (SO 4 ) 6 (OH) 2 .20H 2 O, of yellow color and metallic taste (hardness 2.5, specific gravity 2.10)