Silica sand, quartz, iron ore, manganese ore, copper ore, gypsum ore, bauxite ore, limestone ore, gypsum, plaster of pairs, bentonite, mica, chrome ore, dolomite, rock phosphate, zeolite, calcium carbonate, barite ore, talc, talcum powder, kaolin clay, china clay, potassium feldspar, lead ore, zinc ore, graphite ore, fluorite ore.
