Isicelo:Ukususa ukungcola kwensimbi kwinqubo emanzi futhi kuhlanze amaminerali angewona ezensimbi, njenge-quartz, i-sodium noma i-potassium feldspar.Ngaphezu kwalokho, ngomfutho ozibuthe ophakeme, unomphumela omuhle kakhulu ekuhlukaniseni amaminerali abuthakathaka, njenge-hematite, i-specularite, i-limonite, i-siderite, i-manganese ore, njll.