Home / Explore / Minerals / Hemleyite Minerals Hemleyite hemleyite (Fe²⁺0.48Mg0.37Ca0.04Na0.04Mn²⁺0.03Al0.03Cr³⁺0.01)sum=1.00Si1.00O3 New High-Pressure Mineral - Hemleyite | CDAC — via cdac.carnegiescience.edu · Source Overview Hemleyite is a mineral species (oxide mineral). It crystallises in the trigonal system. Scientific references Hemleyite — Wikidata. https://www.wikidata.org/wiki/Q28790812 Link