Mineral and Technological Features of Magnetite–Hematite Ores .
WEBMar 24, 2021 · However, the content of hematite in the size class of − + 0 mm does not differ significantly from its content in the feed ore, which is an indirect sign of a weak liberation of the mineral even with the finest grinding (Table 5). In the size class − + 0 mm, only celadonite and hydrogoethite are significantly exposed.