fuckyeahmineralogy: Cumengeite (Pb21Cu20Cl42(OH)40·6H2O) is closely related to Boleite, an isometric halide. Here, the cubic Boleite has a tetrahedron of Cumengeite, creating a very uniquely shaped specimen.
fuckyeahmineralogy: Cumengeite (Pb21Cu20Cl42(OH)40·6H2O) is closely related to Boleite, an isometric halide. Here, the cubic Boleite has a tetrahedron of Cumengeite, creating a very uniquely shaped specimen.