CROCOITE - PbCrO4 This is a very nice one of orange red crystals of Crocoite. The Lustrous translucant crystals sit in a bed of limonite gossan matrix.This specimen is 11 cm (4-3/8") wide by 9 cm (3-1/2") deep by 6 cm (2-3/8") high. Largest crystals are 3/4" long. Weight 0.39 lbs. From Red Lead Mine, Dundas, Tasmania.