Started before 1902.
Syngenetic submarine exhalative mineralization (Ni-Co-As-Sb-Fe-Pb)and late Hercynian Pb-Zn-Ag-Sb veins cutting Paleozoic basement.
A stratiform subparagenesis (williamite, galena, jamesonite, pyrite, marcasite, ullmannite) exists in the basement, in connection with Silurian graphite-siderite-phyllite black shale formations.
Refs.:
Dana 6:A2:19
I. Venerandi Pierri, Eur. Journ. Mineral. , 1992, 4, 395-397.
Orlandi, P., & Gelosa, M. (2007). Argentiera della Nurra. I minerali di alterazione della miniera di sfalerite e galena argentifera. Rivista Mineralogica Italiana, 31 (1), 22-31.