pipe clay


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pipe clay

[′pīp ‚klā]
(geology)
A mass of fine clay, usually lens-shaped, which forms the surface of bedrock and upon which often rests the gravel of old river beds.
References in periodicals archive ?
"If it didn't have pipe clay in it you could make a pancake out of it!" The cooking analogies don't stop there; he has recently become fascinated by the possibility that painters, like chefs, might originally have worked in harmony with the year's natural cycles.
So I think the word your letter writer is looking for is "pipe clay".
| Wavin Ltd, variation of conditions 1 and 3 on previous permission for variation of conditions 2, 15, 17, 49, 53 and 60 relating to the stripping of soils in advance of development and the deposition of soils during restoration of the site on previous permission for extraction of pipe clay, site access, landscaping and site reinstatement, Ox Lee Quarry, Bedding Edge Road, Hepwor th.
THE lady in Australia who can't remember what stair-whitening was called must mean a cake of pipe clay, a solid block of whitener which was broken up and dissolved in a bucket of boiling water.
The pipe clay caricature model was discovered in a well deposit in Penllyn, known as Salmon Wells or Ffynnon y Pentre, in 1999.