Pot clay | Article about pot clay by The Free Dictionary
pot clay[′pät ‚klā]
Refractory clay used to make the pots in which glass is produced.
References in periodicals archive
Fox Valley Pottery will be hosting summer camps for kids, adding pinch pot clay
classes and more.
Each skull is made from Cornish pot clay
and takes around two days to produce.
By the middle of the 19th century, Stourbridge was producing around 12,000 tons of pot clay