Pyromorphite

This specimen is Pyromorphite from Kintore Open Cut, Broken Hill, New South Wales, Australia, measuring 56 x 41 x 31 mm and weighing 150 g. It is drawn from the David Vince Collection. Pyromorphite is a lead phosphate belonging to the same mineral group as Mimetite and Vanadinite, and it typically forms barrel-shaped or hexagonal prismatic crystals within the oxidised zone above lead-bearing ore. Its colour ranges from green through yellow to brown depending on the trace elements present during crystallisation. Kintore Open Cut is one of the Broken Hill workings recognised for producing well-formed secondary lead minerals, reflecting the oxidation of the orebody's primary Galena in near-surface conditions. At 56 x 41 x 31 mm and 150 g, the specimen has good presence for the species, and its documented Kintore locality ties it to one of the more productive secondary-mineral localities within the broader Broken Hill field. The specimen's documented provenance is the David Vince Collection.