Home / Explore / Minerals / Calvertite Minerals Calvertite calvertite Cu5Ge0.5S4 Category:Calvertite - Wikimedia Commons — via commons.wikimedia.org · Source Overview Calvertite is a mineral species (sulfosalt mineral). It crystallises in the cubic system. Nickel–Strunz class: 2.CA.15. Scientific references Calvertite — Wikidata. https://www.wikidata.org/wiki/Q17333759 Link
