[mass noun] A type of fine china stone used to make Chinese porcelain.
- ‘The proportions of kaolin and petuntse in hard-paste porcelain may vary.’
- ‘Unlike earthenware and stoneware, porcelain is basically made from a mixture of two ingredients - kaolin and petuntse.’
- ‘Other fusible materials were added: the mineral sericite (a type of mica called petuntse) by the Chinese, alabaster by the Böttger workshop.’
Early 18th century: from Chinese (Mandarin dialect) báidūnzi, from bái white + dūn stone + the suffix -zi.