This crocoite is from the famous Adelaide mine in the Dundas mineral field, Zeehan District, Tasmania, Australia. This was a silver-lead mine that is now worked for the collecting of crocoite specimens. Crocoite is a chromate that contains the elements Pb, Cr, and O. This specimen consists of interpenetrating clusters of crocoite crystals with some minor clay, manganese and limonite. The well defined prismatic crystals have a bright orange/red color and a glistening vitreous luster. This piece measures 1 1/2 x 1 3/8 x 3/4 inches or 38 x 35 x 19 mm.