Alabama critical minerals site name 'Unnamed occurrence,' GSA internal feature identification number ALMIN.15.20.247, located in Located on the Hightower 7.5-minute quadrangle, Alabama.the Hightower 7.5' quadrangle in Cleburne County, Alabama. This site has been documented to contain the commodity(ies) aluminum (kyanite/sillimanite), calcium (calcium oxide), iron (iron oxide), magnesium (magnesium oxide), manganese (manganese oxide), silica (silicon dioxide), potassium (potassium oxide), sodium (sodium oxide), titanium (titanium oxide). Was there past production of these minerals at this site?: No. The reference in which more information can be found on this site and its minerals can be found in: Rheams, K.F., 1986, Kyanite-sillimanite [...]