Wiktionary
meneghinite
n. (context mineralogy English) A blackish-grey orthorhombic sulfosalt mineral.
Wikipedia
Meneghinite
Meneghinite is a sulfosalt mineral with the chemical formula CuPb SbS.
In the orthorhombic crystal system, meneghinite has a Mohs hardness of 2½, one perfect cleavage and a conchoidal fracture. It is a blackish lead-grey in colour and gives a black shining streak. Its lustre is metallic.
Discovered in the Italian Province of Lucca in 1852, it is named after Giuseppe Meneghini (1811–1889) of the University of Pisa, who first observed the species. The Bottino Mine in Lucca is the type locality.