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.’

  More example sentences

  • ‘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.’