Home > Lead Minerals – December 31 > MS1160 Krupkaite

Krupkaite - Sold

Krupkaite is a lead copper bismuth sulfide mineral, structurally related to bismuthinite and aikinite. Petříček & Makovicky (2006) detail the complex structural relationships of this mineral group. Žák et al. (1974) named the mineral after the type location of Krupka in the Czech Republic. The mineral forms radiating groups of needles to 2 mm on this specimen. Also present are galena, chalcopyrite and siderite. Krupkaite specimens from Peru are among the world's best, and this is a nice example.