ball clay mining,Mineral Planning Factsheet - Ball clay - British Geological SurveyMineral Planning Factsheet. Ball clay. Ball clays are fine-grained, highly plastic sedimentary clays, which fire to a light or near white colour. They are used mainly.ball clay mining,ball clay: a mineral of national and international importanceBall Clay Deposits in South West England. Lustleigh-Sticklepath Fault Zone. Bideford. Bovey Basin. Petrockstow. Basin. SOMERSET. CORNWALL. DEVON.Ball Clay and Bentonite Deposits of the Central and Western Gulf of .Ball clay and bentonite deposits of the Cen- tral and Western Gulf of Mexico coastal plain, U.S.A.. (Contributions to the geology of mineral deposits).
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