Alabama critical minerals site name 'Unnamed occurrence,' GSA internal feature identification number ALMIN.11.20.049, located in Located on the Mitchell Dam 7.5-minute quadrangle, Alabama.the Mitchell Dam 7.5' quadrangle in Chilton County, Alabama. This site has been documented to contain the commodity(ies) aluminum (kyanite/sillimanite), calcium (calcium oxide), iron (iron oxide), magnesium (magnesium oxide), potassium (potassium oxide), sodium (sodium oxide), silica (silicon dioxide), 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 in rocks and saprolites [...]