Preliminary Report on the possibility of upgrading Garnet, Quartz and Corundum samples by Magnetic Separation

The results of preliminary studies on the possibility of upgrading Garnet, Quartz and Corundum samples for abrasive purposes by magnetic separation are presented. Garnet and Quartz samples responded favourably. A garnet concentrate of 96% purity could be produced with about 88% recovery. Almost a pure quartz concentrate was produced at medium intensity with more than 99 percent recovery by weight. The Corundum sample contained only about 10% Corundum. It did not respond satisfactorily to magnetic separation tests because of intimate interlocking. A product containing about 21% Corundum could be produced with a recovery of nearly 63 percent at that size.