Bournonite


Composition:

PbCuSbS3

Crystal System : Orthorhombic
Colours: Steel-gray
Lustre : Metallic
Hardness (H) : 2.5-3.0
Specific Gravity (S.G) : 5.83

 

Distribution

Extremely rare. Questionable status at Tsumeb.

Occurrence

  • Hypogene

Paragenetic and General Notes

Reported by Franz Neuhold, based on appearance and an EDS analysis (www.mindat.org), but there is no reference to bournonite in the peer-reviewed literature.