Home / Explore / Minerals / Heliophyllite Minerals Heliophyllite heliophyllite Pb6Cl4(As2O7) Heliophyllite Mineral Specimen For Sale — via www.dakotamatrix.com · Source Overview Heliophyllite is a mineral species (discredited halide mineral). Nickel–Strunz class: 3.DC.65. Scientific references Heliophyllite — Wikidata. https://www.wikidata.org/wiki/Q3144663 Link