Home / Explore / Minerals / Deloneite Minerals Deloneite deloneite (Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5 Deloneite Mineral Specimen For Sale — via www.dakotamatrix.com · Source Overview Deloneite is a mineral species (apatite, phosphate mineral). Nickel–Strunz class: 8.BN.05. Scientific references Deloneite — Wikidata. https://www.wikidata.org/wiki/Q3705146 Link