Guangxi white mud Guangxi Rowe white mud is a kind of soft kaolin, can also be called soft fire clay, 1992 by the China clay specialist liuchangling in Fusui County of Guangxi screening confirmed Rowe white mud is ball clay, so now there are dimension called Luo ball clay. Rowe white mud (ball clay) main chemical composition for the SiO2 content 45.3~51.6%, alumina (aluminum oxide) content 26~36.8%, ferric oxide (Fe2O3) 0.65~2.2%, K2O+Na2O