Definitions for "China stone"
A mineral substance, rich in felspar, which fuses down to a white, glassy mass at a high temperature. It is an ingredient of true porcelain, Wedgwood's Queen's ware, and "Pearl" ware. It corresponds to Cornish stone and to Chinese petuntse.
Also known as porcelain stone, a rock composed of quartz and alkali feldspars used as a flux in porcelain. In China and Korea, porcelain stones commonly contain mica as well as feldspar and quartz, and sometimes kaolin; some were used as raw materials without additions of clay (see boxes pp.100, 184, 196, 203).
a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)