Mineral Jig Separator Jig Concentrator
A feature of jigs is that the composition of the jig bed can be carefully designed by placing a layer of coarse dense particles known as ragging on the jig screen These may include steel balls or a suitable heavy mineral such as hematite Fe2O3 By this means only very dense grains will penetrate through the ragging and fall through the jig screen Grains of lower density quartz