General Contents - Barite Investigation: Stratigraphy - Bonneterre, Cotter, Derby-Doerun, Eminence, Gasconade, Jefferson City, Joachim, Mississippian, Pennsylvanian, [Pleistocene], Potosi, Roubidoux, St. Peter: Minerals - barite, calcite, chalcedony, chalcopyrite, clay, galena, glauconite, hemimorphite, iron, iron oxide, lead, limonite, stalactitic, limonite, malachite, manganese, marcasite, ochre, pyrite, quartz, smithsonite, sphalerite, sulfides: Lithologies - breccia, chert, dolomite, loess, sandstone, tripoli: Mines/quarries - barite mines/washers, lead mines/shafts, zinc mines; numerous mine/operator/owner names: Paleontology - Cryptozoans.: Hydrology - Named streams.: Structure - Contacts, one elevation. Ore strikes. Joints, [...]
