 Ọ nwere ike na nkume igwe nri quartz, feldspar, calcite, talc, barite, fluorite, obere ụwa, marble, egbuke, bauxite, manganese ore, ígwè ore, ọla kọpa, phosphate ore ego, ICT esịtidem ngalaba nke ekweghị ekwe na-erughị asaa degrees na mmiri na-erughị 6 . 