This chrysocolla is from the Whim Creek Copper Mine at Whim Creek, Roebourne Shire, Western Australia, Australia. Whim Creek is Cu-Zn-Pb-Ag deposit that contained over sixty different mineral species. This piece is considered a classic for the locale. It consists of a goethite matrix that hosts turquoise crystals of chrysocolla that replaced malachite that replaced azurite (double pseudomorph). There are orange wulfenite crystals scattered about the piece and what looks like small (requires loupe) deposits of pyromorphite are present also. This piece measures 2 x 1 3/8 x 13/16 inches or 50 x 35 x 20 mm.