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