argillaceous earth

This argillaceous earth mixed with mustard oil is locally used for clay and when rose-leaves and perfumes are used, it makes a tolerable wash-ball.

From The Book of the Thousand Nights and a Night — Volume 13 by Sir Richard Francis Burton

Consisting chiefly of an argillaceous earth, brought down by the rivers, floated about, and successively deposited in banks; forming the alluvial and fertile European settlements of Guiana.

From The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Sir Edward Belcher

For convenience' sake, I will call the marly rock by the name given to it by the inhabitants, namely, Tosca-rock; and the reddish argillaceous earth, Pampean mud.

From Geological Observations on South America by Charles Darwin

The argillaceous earth at the bottom of the pans was made hard to prevent the escape of the water by percolation.

From Voyages of Samuel De Champlain — Volume 01 by Charles P. (Charles Pomeroy) Otis

The soil we have come over is chiefly muteear, or the doomuteea, tightened by a mixture of clay, or argillaceous earth.

From A Journey through the Kingdom of Oude, Volumes I & II by William Sleeman