bournonite
noun
bour·non·ite
| \ ˈbōrnəˌnīt, ˈbȯr-, ˈbu̇r-\
plural -s
Definition of bournonite
: a mineral PbCuSbS3 consisting of a steel-gray or black metallic-looking sulfide of antimony, lead, and copper occurring in orthorhombic crystals, and also massive — see wheel ore
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