Home / Explore / Minerals / Poyarkovite Minerals Poyarkovite poyarkovite Hg3OCl Poyarkovite Mineral Specimen For Sale — via www.dakotamatrix.com · Source Overview Poyarkovite is a mineral species (halide mineral). It crystallises in the monoclinic system. Nickel–Strunz class: 3.DD.10. Scientific references Poyarkovite — Wikidata. https://www.wikidata.org/wiki/Q3909695 Link