Zuni Mountains fluorspar

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

Information leading to the delineation of this focus area

Basis for focus area Mining district boundaries from McLemore (2017).
Identified resources Historical production of fluorite.
Production 182,244 tons fluorite produced (1918-1953) (McAnulty, 1978).
Status Past mining.
Estimated resources Unknown.
Geologic maps Goddard (1966), scale 1:31,680.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Fluorite veins filling faults and fissures in Proterozoic rocks and Permian Abo Formation.
Deposits Twenty-one & Twenty-seven fluorspar mines (MRDS dep_id: 10069412; largest producer in district), Mirabal (MRDS dep_id: 10012895), Boneekey (MRDS dep_id: 10013005), Grants (MRDS dep_id: 10013006).
Evidence from mineral occurrences MRDS; New Mexico Mines Database (McLemore and others, 2005).
Geochemical evidence Chip samples from a 4-foot wide breccia zone at the Grants mine contained 43.6% CaF2 and 39.6% SiO2.
Geophysical evidence Unknown.
Evidence from other sources None.
Comments One of the largest fluorite producing districts in New Mexico.
Cover thickness and description Unknown.
Authors Virginia T. McLemore.
New data needs This area needs detailed 1:12,000 mapping, chemistry, alteration mapping.
Geologic mapping and modeling needs Detailed geology-structure-alteration-mineralization mapping.
Geophysical survey and modeling needs High resolution aeromagnetic and aeroradiometric coverage.
Digital elevation data needs Lidar complete.