Bournonite Mineral From Bolivia- Collectors Piece, Home Decor, Statement PieceBournonite Mineral From Bolivia Collectors Piece, Home Decor, Statement Piece Weight 25g Size 2. 5cm by 2. 5cm Thickness 2. 5cm Bournonite, sulfosalt mineral, a lead, copper, and antimony sulfide (PbCuSbS3), that occurs as heavy, dark crystal aggregates and masses with a metallic lustre in association with other sulfur containing minerals in many locations, including the Harz Mountains of Germany; a number of localities in Italy; Bolivia; Peru;