potstone


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pot·stone

 (pŏt′stōn′)
n.
A variety of steatite once used to make cooking vessels.

potstone

(ˈpɒtˌstəʊn)
n
(Geological Science) an impure massive variety of soapstone, formerly used for making cooking vessels
References in periodicals archive ?
2d, Mica, selenite, potstone, hornblende, felspar, diamond spar, calc spar, heavy, spar are arranged together; and 3d, Of columnar heavy spar we have the following description: "Usually of bright white colour.