Kaolin yakajairika yevhu chicherwa munyika zvakasikwa.Ndiyo mineral inobatsira ye white pigment, saka, kuchena indekisi yakakosha inokonzera kukosha kwekaolin.Iko kune iron, organic matter, rima zvinhu uye zvimwe tsvina mu kaolin.Tsvina iyi ichaita kuti kaolin ioneke yakasiyana...
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