CuPbSbS₃

This sample of bournonite is displayed in the Smithsonian Museum of Natural History. Bournonite is an sulfide mineral of copper, antimony and lead with the composition CuPbSbS₃ . This sample is about 4x4 cm and is from Noche Buena, Zacatecas, Mexico. This sample also contains Jamesonite.

This sample of bournonite is about 11x11 cm and is from Quiruvilea, La Libertad, Peru.

This sample is about 6x10cm and is from Rheinpreussen, Horhausen, Germany.

This sample of bournonite is about 40cm wide and is from Herodsfoot mine, Liskeard, Cornwall, England. It is described as bournonite with quartz. Because of their shape, these crystals are called cogwheel crystals.

This is bournonite with barite. This sample is about 22 cm wide and is from St. Laurent le Minier, Gard, France.