We have chrome ore, lumpy and fines. 36%-48% grade quality, beryllium ore 10%, iron oreChromite is a mineral that is an iron chromium oxide. It has a chemical formula of FeCr2O4. ... The chemical composition of chromite is Fe2+Cr3+2O4. Chromite, when presented as an ore, or in massive form, forms as fine granular aggregates.we can supply up 20 000mt per month.