Home / Explore / Minerals / Hydrodelhayelite Minerals Hydrodelhayelite hydrodelhayelite KCa2(Si7Al)O17(OH)2·6H2O Hydrodelhayelite Mineral Specimen For Sale — via www.dakotamatrix.com · Source Overview Hydrodelhayelite is a mineral species (phyllosilicate mineral). Nickel–Strunz class: 9.EB.10. Scientific references Hydrodelhayelite — Wikidata. https://www.wikidata.org/wiki/Q3791949 Link