Definition of china stone in English:

china stone

noun

mass noun
  • Partly kaolinized granite containing plagioclase feldspar, which is ground and mixed with kaolin to make porcelain.

    • ‘This was made from a mixture of Cornish china clay and china stone.’
    • ‘To make porcelain (the finest kind of china) it is fused with china stone, or petuntse, at very high temperature.’
    • ‘China stone contains kaolin, quartz, mica, and fluorite.’