Home / Explore / Minerals / Mcconnellite Minerals Mcconnellite mcconnellite CuCrO2 Mcconnellite mineral information and data — via www.dakotamatrix.com · Source Overview Mcconnellite is a mineral species (oxide mineral). It crystallises in the trigonal system. Nickel–Strunz class: 4.AB.15. Scientific references Mcconnellite — Wikidata. https://www.wikidata.org/wiki/Q3853395 Link