Kopo:Tlosa litšila 'me u hloekise liminerale tse seng tsa tšepe, tse kang lehlabathe la silica, feldspar, kaolin joalo-joalo. E ka boela ea sebelisoa liindastering tse ling, joalo ka ho sebetsana le metsi a senyehileng a limela tsa tšepe, limela tsa ho fehla matla, le ho hloekisa tse silafetseng. lisebelisoa tse tala tsa lik'hemik'hale.