Composition: Lead copper antimony sulfide
Nomenclature: Named after the French mineralogist, J. L. de Bournon.
Industrial Uses: Ore of lead and copper.
Additional Notes: Bournonite frequently occurs in twinned crystals that have a jagged, wheel-like shape. For this reason, bournonite is also referred to as "wheel ore" and "cog-wheel ore."
Zaire : Scott 1106 : 1.50 zaire : 13 Feb 1983
Bournonite