Home / Explore / Minerals / Kelyanite Minerals Kelyanite kelyanite (Hg+2)6Sb³⁺BrCl2O6 David Hospital / CC BY 4.0, via Wikimedia Commons · CC BY 4.0 · Source Overview Kelyanite is a mineral species (oxohalide mineral). It crystallises in the monoclinic system. Nickel–Strunz class: 3.DD.60. Scientific references Kelyanite — Wikidata. https://www.wikidata.org/wiki/Q3814431 Link