About This Project
Magnetite | PMS




Iron ores are usually found in the form of magnetite (Fe3O4), hematite (Fe2O3), goethite, limonite or siderite and are rich in iron oxides and have a high specific density.The colour of iron oxides vary from dark grey, bright yellow, deep purple to rusty red.

Magnetite is an iron ore mineral with a density of 4,800-5,100 kg/m3 and permanent magnetism as long as its chemical structure is maintained and that is due to ferrimagnetism. Magnetite is a metallic black mineral that contains iron in two oxidation states, ferric (Fe3+) and ferrous (Fe2+), which is unique amongst the oxides of iron.


Applications and markets

Due to its high iron content, Magnetite is the primary source of iron. It is treated in a blast furnace to produce sponge or pig iron, both to be used in the large-scale manufacture of steel.

Much smaller amounts of magnetite are used in the chemical, magnet, foundry, construction, balast and heavy media separation industry.



At Plomp Mineral Services, we focus on supplying customized Magnetite in very fine sizes for Dense Media Separation (DMS- or Heavy Media Separation -HMS-) processes with the following general specifications:

    • Chemical analysis: Fe – min. 65% | CaO – max. 0.50% | Cu – max. 0.02% | SiO2 – max. 2% | S – max. 0.10%
    • Physical properties: Bulk density: 2,400-2,550 kg/m3 | Specific density: 5,050 kg/m3 | Magnetism: min. 96.50%
    • Humidity: max. 10%.
    • Various sizes:  min. 60% or 80% or 90% passing 45 micron

Technical Data Sheets (TDS) and Safety Data Sheet (SDS) will be sent on request.
Minerals like hematite don’t have to be registered under REACH.



We supply Magnetite in big bags and can deliver by truck and container from our stocks.
Are you interested in our Magnetite? Please feel free to contact us!