Brown County celestite district

Region West, Southwest
Mineral systems
Deposit types
Critical minerals
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Area in eastern Brown County that encompasses multiple MRDS barite and strontium entries.
Identified resources Historical production of strontium (celestite) in 1940s, but accurate data are not available. Some celestite deposits contain as much as 10 to 12% barite.
Production Small quantities of celestite were produced from Brown County during the late 1930s and early 1940s.
Status Past mining.
Estimated resources No data.
Geologic maps Cheney and Eargle (1951), scale 1:63:360; Kier and others (1976), scale 1:250,000.
Geophysical data Rank 4 aeromagnetic coverage; Rank 5 aeroradiometric coverage.
Favorable rocks and structures Bedded celestite and barite deposits are hosted by the Glen Rose Formation of the Trinity Group.
Deposits Alpha Baker mine (MRDS dep_id: 10062614), Boyd mine (MRDS dep_id: 10062613), Miller mine (MRDS dep_id: 10062610), many occurrences listed in MRDS.
Evidence from mineral occurrences MRDS.
Geochemical evidence Grade of the deposits are 70 to 85% SrSO4.
Geophysical evidence Unknown.
Evidence from other sources Unknown.
Comments Most of the celestite produced in Texas was used as a weighting agent in rotary-drilling fluids.
Cover thickness and description Mineralization exposed at the surface.
Authors Laurel G. Woodruff.
New data needs Geochemistry, geologic mapping, geophysics.
Geologic mapping and modeling needs Geologic mapping.
Geophysical survey and modeling needs High resolution geophysical coverage needed.
Digital elevation data needs Lidar complete.