Description
J. A. Mc Donald
Commodities
PrimaryFluorine-Fluorite
Commodity typeN
Deposit
Model238: Manto fluorite
Deposit sizeS
WorkingsSurface/Underground
Orebody formLINEAR, TABULAR, MANTO
Ore controlFissure Veins Occur In East Trending Or Nearby Ne-Trending Faults. Replacement Deposits - Rocky Ridge Area Associated With Ne - Trending Faults; Deposits In Sections 37 And 48 Associated With The East - Trending Wind Canyon Fault; Spar Valley North And South Ore Bodies Associated With East Trending Rhyolite Fault And Bounded By Mine Fault. Most Faults Are Normal.
Materials
Ore mineralsFluorite
GangueAnkerite, Calcite, Hematite, Limonite, Pyrite, Quartz, Smithsonite
Geology
Host rockLimestone · Grayson Formation-Reef L.S. Member;Finlay L.S.;Bluff Mesa Formation L.S
Associated rockSyenite,Rhyolite,Plutonic Rock · Rhyolite Flows, Sills, Dikes;Eagle Peak Syenite
StructureMexican Overthrust, Van Horn Dome, Eagle Mountain Syncline, Devil Ridge Thrust Fault
Economic & production
Development statusPast Producer
First production1942
Discovery year1919
Identification
Deposit ID10069394
MRDS IDW006906
Alternate namesEagle Spring, Lucky Strike, Spar Valley, Tank Canyon, Syphon Canyon, Oak, Fox, Rocky Ridge
RegionNA
Data scoreB
Coordinates30.93351, -105.05885
References
DENNIS, W.E., 1946, EXPLORATION OF EAGLE MOUNTAIN FLUORSPAR DEPOSITS, HUDSPETH COUNTY, TEXAS: U.S. BU MINES REP. INV. 3878, 11 P.GILLERMAN, E., 1953, FLUORSPAR DEPOSITS OF THE EAGLE MOUNTAINS, TRANS-PECOS TEXAS: USGS BULL. 987, 98 P.1943 DIREXPL U.S. BU MINES1947 GEOLMAP E. GILLERMANCIMRIGILLERMAN, E., 1953, USGS BULL. 987, 98 P.