These mimetite crystals are from the Pingtouling Mine i Liann County, Qingyuan Prefecture, Guangdong Province, China. This lead-zinc deposit contains seven different minerals including mimetite. It is an arsenate that contains the elements Pb, As, O and Cl. This specimen consists of a limonite/goethite matrix that is topped with lustrous hexagonal crystals. This piece measures 2 x 1 1/4 x 1 1/2 inches or 50 x 32 x 38 mm.