Chromite Platinum sulfide ore. Chromite can be a host for platinum-group elements (PGE), including platinum, often as microscopic inclusions or solid solutions within the chromite crystal lattice. While many chromite deposits have low PGE concentrations, some, particularly those with high-Cr content, are enriched in PGE, with platinum occurring in various forms such as native alloys, sulfides, or arsenides alongside other PGE. The distribution of these precious metals depends on the specific geological environment and magma chemistry during the formation of the chromite deposit. Non magnetic. Tested with hydrogen peroxide, an immediate reaction is catalyzed. Natural platinum has a Mohs hardness of 4-5, making it moderately fragile. Despite careful multi-layer packaging, we cannot guarantee that the mineral will be delivered undamaged, please take this into account.