ganisters sing kawangun dening karusakan saka mineral gampang weathered utamané Feldspar, ing cakrawala lumahing lemah dening pangolahan lemah pambentuk.
kalsit, lempung, mineral lempung, Feldspar, micas, quartz
aluminium oxide, cao, wesi (iii) oxide, kalium oxide, MgO, sodium oxide, silikon dioksida