sundance facts, page-6

Gus

You speak of getting the facts correct, then please recognise the difference between an Itabirite (hematite) deposit and a BIF (magnetite) deposit, the former uses reverse floatation to liberate the iron whilst the latter uses magnetic separation. Reverse floatation uses a coarser grain size and is a lot cheaper. Magnetite separate needs very fine grind size and a lot of power for both grinding and separation.

Cheers

GOM