... , siderite; gangue minerals are: quartz, chlorite, amphibole, mica, feldspar and calcite. Jingtieshan-type iron ore are mainly distributed in China ... . symbiotic valuable mineral barite. Main metal ores containing vanadium and titanium minerals are magnetite, ilmenite, sulfide in order to ... , red iron ore, brown iron ore, siderite iron ore and mixed ore (magnetite, hematite, a mineral mix , titanium ...