Alabama critical minerals site name 'Norton deposit,' GSA internal feature identification number ALMIN.08.20.028, located in the Glencoe 7.5' quadrangle in Calhoun County, Alabama. This site has been documented to contain the commodity(ies) manganese (manganese oxide). 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., 1992, Mineral resources of the Valley and Ridge province, Alabama: Alabama Geological Survey Bulletin 147, p. 82. Additional notes: An estimated 300 (short) tons of manganese ore (18- to 50-percent) manganese since 1917 (Rheams, 1992). No development information provided. No detailed geologic [...]