Geography of Illinois before the dinosaurs. Galena, a lead ore, has been mined in the northwest corner of the state. The ore was processed around Peru, Illinois, where river transport was available to bring the ore to a source of coal. About six tons of coal are needed for each ton of ore. Fluorite, calcium fluoride, is the state mineral. It is mined in the southeastern portion of the state, around Metropolis. Fluorine gas is produced from fluorite. This is used in the production of uranium hexafluoride in Metropolis, Illinois for use at the gaseous diffusion plant in Paducah, Kentucky. Geodes can be
Galena, Oregon office moved from the current site of Galena two miles up Elk Creek to their mine. The new post office was named for a body of galena ore in the area, and the town was renamed as well. The mines were worked extensively in the 1860s and were still active in 1940. Galena, Oregon Galena is an unincorporated community in Grant County, Oregon, United States, about from Austin Junction in the Blue Mountains. It is on the Middle Fork John Day River in the Malheur national forest. The former gold mining camp is considered a ghost town. The locale was