potstone


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pot·stone

 (pŏt′stōn′)
n.
A variety of steatite once used to make cooking vessels.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

potstone

(ˈpɒtˌstəʊn)
n
(Geological Science) an impure massive variety of soapstone, formerly used for making cooking vessels
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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.