Isicelo:Ukukhipha ukungcola okubuthakathaka kazibuthe ezintweni zempushana ezinhle neziqinile, sekusetshenziswe kabanzi embonini ye-ceramic, ingilazi, yamakhemikhali, ephikisayo nokunye. Phakathi naleso sikhathi futhi ingasetshenziswa ekucubunguleni i-hematite, i-limonite ect, amaminerali abuthakathaka kazibuthe.