High-grade Clays of the Eastern United States: With Notes on Some Western Clays |
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Common terms and phrases
_do____ 50 feet abundant Air shrinkage Alumina ball clay beds bond clay borings buff Bureau of Mines burned clay cent in terms cent__ clay from pit cone County Creek crude clay depth diaspore diaspore clay dike Dillsboro dry clay feldspar Ferric oxide Fire tests flakes flint clay formation Geol Geological grades high-grade clays hydromica indianaite kaolinite Lignite limestone limonite Lower Cretaceous manufacture mass material mica microscope miles millimeter mineral mixture Modulus of rupture Mount Holly Springs occur Oriskany outcrops overburden pegmatite physical tests Porosity per cent pounds per square prospect quantity quartz quartzite refractory residual clay ridge rock rutile sagger sand sandstone Saylorsburg schist shaft shale shows shrinkage per cent Silica South Carolina Sprucepine square inch stained Steel hard streaks surface Temperature terms of dry terms of volume tests of clay tons tourmaline tunnel Volume shrinkage Linear wall Water of plasticity white clay zircon