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Clayshale production in southwestern Pennsylvania
Criteria used in evaluating clays and shales
2 other sections not shown
1260 Pyrometric cone 2000 Light brown Abrupt vitrification Allegheny Group Description Attitude of bedding BEAVER COUNTY Bloating tests quick-firing Bulk Cf Bulk density gm/cc Calcite 0 Slow-firing CAMBRIA COUNTY Chemical analysis Chlorite claystone Color Absorb Color scale Conemaugh Group Description COUNTY Crushing characteristics density Co Color Drying shrinkage effervescence when treated Essentially horizontal Weathering Expanded FBS facing brick Feldspar Freeport Geologic unit Glenshaw Formation Grade SW building Hard horizontal Weathering intensity Kaolinite Kittanning Latitude lightweight aggregate Location Longitude material for lightweight Mica Mineralogy X-ray moderate Sampled interval Moh's Total Montmo Montmorillonite 0 CaO Munsell designation ND Bloating test Negative Remarks ness Moh's scale Potential Pyrometric cone equivalent quad Quartz Raw properties rillonite 0 K20 Sample number shale siderite siltstones silty shales Slight Sampled interval Slight to moderate Slow-firing tests stratigraphic feet SW building brick Temp Total shk Type FBS facing underclay vermiculite Water of plasticity WESTMORELAND COUNTY