Little Florida Mountains 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 Mining district boundaries from McLemore (2017).
Identified resources Historical production of barite, fluorite, and manganese.
Production Between 1918 and 1939, 16,000 tons @ 45% Mn produced mostly from the Manganese Valley mine; fluorite production was 13,428 tons (
Status Past mining.
Estimated resources Unknown.
Geologic maps New Mexico Bureau of Geology and Mineral Resources (2003), scale 1:500,000.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Epithermal fluorite and manganese veins along faults in fanglomerate and Tertiary volcanic rocks.
Deposits Manganese Valley mine (MRDS dep_id: 10067834), Luna mine (MRDS dep_id: 10009806), Killion vein claims (MRDS dep_id: 10062718).
Evidence from mineral occurrences MRDS; McLemore and others (2005).
Geochemical evidence Ore minerals are hollandite and psilomelane; gangue minerals include calcite, barite, and quartz.
Geophysical evidence No data.
Evidence from other sources Unknown.
Cover thickness and description Deposits typically shallow.
Authors Virginia T. McLemore.
New data needs This area needs detailed 1:12,000 scale mapping, chemistry, alteration mapping.
Geologic mapping and modeling needs Detailed geology-structure-alteration-mineralization mapping.
Geophysical survey and modeling needs High resolution geophysical coverage needed.
Digital elevation data needs Lidar complete.