Isicelo:Ukususa ukungcola kwentsimbi kwinkqubo emanzi kwaye uhlambulule iiminerali ezingenayo isinyithi, njenge-quartz, i-sodium okanye i-potassium feldspar.Ukongeza, kunye nokuqina kwemagneti ephezulu, inefuthe elihle kakhulu ekwahluleni iiminerali ezibuthathaka, njengehematite, i-specularite, i-limonite, i-siderite, i-manganese ore, njl.