ball clay

American  

noun

Ceramics.

1. a fine dark kaolinic clay that turns white or nearly white when fired, used in the manufacture of a wide variety of ceramic wares in combination with other clays for its exceptional bonding properties and plasticity.

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Etymology

Origin of ball clay

First recorded in 1805–15

Example Sentences

The ball clay, exported from Teignmouth and Poole, comes from the lower tertiary clays of Devon and Dorset, and is remarkably good and plastic, the quantity of iron being comparatively very small.

From British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. by Arnoux, L.

Silica, 50 parts; plastic fire clay, 10 parts; ball clay, 3 parts.

From Practical Mechanics for Boys by Zerbe, James Slough

For earthenware or china, the English potters use only two sorts of clays: the ball clay, also called blue clay, and the kaolin.

From British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. by Arnoux, L.

The ball clay from Poole is dug in the neighbourhood of Wareham, by Mr. Pike.

From British Manufacturing Industries Pottery, Glass and Silicates, Furniture and Woodwork. by Arnoux, L.

Generally speaking, kaolin, China clay, ball clay, pipe clay, China stone, felspar, flint, quartz, sand, lime, chalk, and calcined bone are the ingredients of most modern pastes.

From Pottery, for Artists Craftsmen & Teachers by Cox, George J.