Noi:No ka wehe ʻana i nā mea haumia hao i ka hana pulu a hoʻomaʻemaʻe i nā mineral non-metallic, e like me ka quartz, sodium a i ʻole potassium feldspar.Eia kekahi, me ka ikaika magnetic kiʻekiʻe, he hopena maikaʻi loa ia i ka hoʻokaʻawale ʻana i nā minerala palupalu nāwaliwali, e like me ka hematite, specularite, limonite, siderite, manganese ore, etc.