China clay vs. potter's clay Porcelain is fired from chinastone and china clay, which are composed of kaolinite, feldspars and quartz in compositions which vary according to their source. Potter's clays on the other hand contain clay, sometimes with small amounts of kaolin.
瓷土是由含高嶺土、長石、石英等成份的瓷石和瓷土構成的，但依不同產地，成份也各異；陶土則是一種黏土，有的也可能含少量高嶺土。