Alabama critical minerals site name 'National Cement Co. quarry,' GSA internal feature identification number ALMIN.59.20.003, located in the Francis Mill 7.5' quadrangle in St. Clair County, Alabama. This site has been documented to contain the commodity(ies) aluminum (aluminum oxide), iron (iron oxide), magnesium (magnesium carbonate). Was there past production of these minerals at this site?: Yes. The reference in which more information can be found on this site and its minerals can be found in: Rheams, K.F., 1993, Mineral resources of St. Clair County, Alabama (Tables 8): Alabama Geological Survey Special Map 237, p. 13-14, 15. Additional notes: No production data or development information provided. No detailed geologic information [...]