Alabama critical minerals site name 'J. D. Walker prospect,' GSA internal feature identification number ALMIN.14.20.146, located in the Mellow Valley 7.5' quadrangle in Clay County, Alabama. This site has been documented to contain the commodity(ies) arsenic (arsenopyrite). 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: Neathery, T.L., 1968, Sulfide mineralization in the Cragford District, Clay and Randolph Counties, Alabama: Alabama Geological Survey Circular 50, p. 48-49, plates 1 and 2. Dean, L.S., and Clarke, O.M., Jr., 1988, Mineral resources of Clay County, Alabam Additional notes: No production data provided. Prospect [...]