The Solubility and Stability of Scorodite, Feaso4.2h2o.
Am Mineral 1985 70:838-844
Scorodite is an orthorhombic iron arsenate commonly associated with arsenic-bearing ore deposits as a weathering product. This study investigated the mode of formation and persistence of scorodite in nature, and suggests that its presence controls the arsenate levels in waters draining from oxidizing arsenic-rich ores. Observations at the Brinton arsenic mine, Floyd County, Virginia, among other arsenopyrite deposits, show a close spatial relationship between arsenopyrite and scorodite. Analysis of the surface and ground waters at the brinton arsenic mine site showed that scorodite seems to control maximum dissolved arsenate levels.
Am. Mineral., V. 70, 1985, PP. 838-844
Virginia Polytechnic Inst & St Univ