Pipestone is a synonym of pipeclay.
As nouns the difference between pipestone and pipeclay
is that pipestone is a hard, red clay used by native americans for making tobacco pipes while pipeclay is catlinite.
As a verb pipeclay is
to whiten by application of pipeclay.
pipestone
English
Noun
(-)
A hard, red clay used by Native Americans for making tobacco pipes.
pipeclay
English
Noun
(-)
catlinite
Synonyms
* pipestone
Verb
(
en verb)
To whiten by application of pipeclay.
(slang, dated, UK) To clear off.
- to pipeclay accounts