Division 37Production of magnetite concentrate

### Division 37—Production of magnetite concentrate 337 (1) The production of magnetite concentrate is the physical transformation of magnetite ore (ore containing Fe3O4 that has a key property of ferrimagnetism) to produce saleable magnetite (Fe3O4) concentrate that: (a) has a concentration of iron (Fe) of at least 60% on a dry weight basis; and (b) has a particle size of less than 75 microns for at least 80% of the concentrate. > Note: Ferrimagnetism is ions of iron (Fe2+ and Fe3+) spontaneously aligning in the sublattice of a crystalline solid to produce a net magnetic moment that is observed as permanent magnetisation of the solid at normal room temperature. (2) The production of magnetite concentrate is specified as an emissions‑intensive trade‑exposed activity. (3) The production of magnetite concentrate is a moderately emissions‑intensive activity. > Note: See Part 4. (4) The basis for the issue of free carbon units for the production of magnetite concentrate is by a tonne of 100% equivalent iron (Fe) contained in saleable magnetite (Fe3O4) concentrate that: (a) has a concentration of iron (Fe) of at least 60% on a dry weight basis; and (b) has a particle size of less than 75 microns for at least 80% of the concentrate; and (c) is produced as part of carrying on the emissions‑intensive trade‑exposed activity; and (d) is of saleable quality. > Note: Saleable quality is explained in Part 2.