Alabama critical minerals site name 'Unnamed occurrence,' GSA internal feature identification number ALMIN.45.20.014, located in the Jeff 7.5' quadrangle in Madison County, Alabama. This site has been documented to contain the commodity(ies) aluminum (aluminum oxide), calcium (calcium carbonate), iron (iron oxide), magnesium (magnesium carbonate), silica (silicon dioxide). 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: Chaffin, H.S., Jr., 1976, Mineral resources of Madison County, Alabama: Alabama Geological Survey Special Map 155, p. 23. Beg, M.A., 1984, Limestone resources of Alabama: Alabama Geological Survey Special [...]
