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Preface by the Director iiiiv
Distribution of Kaolins Great Britain France
8 other sections not shown
acid Alkalies altered Alumina analyses Austell beds Bischof Brown-coal carbon dioxide cent Ceramic Soc China Clay china-stone Clay substance coarse colour composition contains Cornwall County Cretaceous crystals dark ground illumination decomposed decomposition depth district dried drying employed feet felspar felspathic formed Geol Geological glaze gneiss Goonbarrow grains granite halloysite Hill inches iron kaolin clay kaolin deposits kaolin formation kaolin is found kaolinite kaolinized granite kaolinized rock Lee Moor limestone lithomarge Loss on ignition Magnesia mass material metres mica miles mineral mines mixture nacrite occurs orthoclase oxide pegmatite Petuntse plastic porcelain Pottery Prov quarry quartz refractive index refractory residue sample sand sandstone Saxony schist Seger sericite settling pits shaft Silica Stahl Stephen in Brannel stone surface tanks thick tons tourmaline trace Tregargus Treviscoe trough variety veins washed weathering Wheal white clay white kaolin yellow