Recent Examples on the WebWith the help of white china clay, this mask will also work to reduce the size of pores and control oil production. Grooming Playbook, The Salt Lake Tribune, 9 June 2022 The other important minerals available in significant quantities are limestone, dolomite, manganese, mica, china clay, graphite, fire clay, coal bed methane, uranium, phosphorite, apatite, quartz, gold, feldspar and pyroxenite. Gurvinder Singh, Quartz India, 4 Oct. 2019