Southwest Arkansas Antimony District

Region Central, South Central
Mineral systems
Deposit types
Critical minerals
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Focus area outline from Arkansas Geological Survey around antimony deposits and prospects.
Identified resources Historical production of antimony.
Production Past production estimated at 5,400 tons Sb.
Status Past mining.
Estimated resources Unknown.
Geologic maps Miser and Purdue (1929), scale 1:125,000; Haley and Stone (2006), scale 1:125,000; Haley and others (2003), scale 1:24,000; Haley and others (2008), scale 1:24,000.
Geophysical data Inadequate aeromagnetic and aeroradiometric data.
Favorable rocks and structures Late Mississippian Stanley Shale.
Deposits Antimony Bluff mine (MRDS dep_id: 10138603), Conboy, Jordan, Luttrell, May, Otto, Poor Boy, Stewart, Valley, Wolfton.
Evidence from mineral occurrences MRDS.
Geochemical evidence No data.
Geophysical evidence No data.
Evidence from other sources Drill core and mine information are in Miser and Purdue (1929).
Comments Only mined to a depth of 170 feet. Mining of antimony ore was limited to northern Sevier County, although some stibnite is also present in Pike County, associated with cinnabar.
Cover thickness and description Mineralization exposed at the surface and mined to <200 feet.
Authors Albert H. Hofstra.
New data needs Geochemistry.
Geologic mapping and modeling needs Drilling, and 3-D geologic model.
Geophysical survey and modeling needs High resolution geophysical aeromagnetic and aeroradiometric coverage.
Digital elevation data needs Lidar adequate.