Utah · Juab County
Past Producer

Sigma Emma Mine

Juab County, Utah, United States
BerylliumUraniumFluorine-FluoriteLithium
⌖ Show on mapUSGS source ↗
Description

Vitro Minerals Corp (?)

Commodities
PrimaryBeryllium
TertiaryUranium, Fluorine-Fluorite, Lithium
Commodity typeB
Deposit
Deposit sizeL
Orebody formTABULAR
Ore controlRhyolite Cap Rock; Permeable Tuff With Reactive Carbonate Clasts
Materials
Ore mineralsBertrandite, Uranophane
GangueCalcite, Clay
Other materialsFluorite
Geology
Host rockVolcanic Rock (Aphanitic),Tuff,Volcanic Breccia (Agglomerate) · Spor Mountain
Associated rockRhyolite · Porphyritic Rhyolite Member Of Spor Mountain Formation
StructureTintic--Deep Creek Mineral Belt, Basin Range High Angle, Faults Tilt Ore-Bearing Strata; Some May Have Been Conduits For Fluids
Tectonic settingExtensional Basin Range Faulting; Accompanied By Bimodal Rhyolite-Basalt Volcanism
AlterationArgillic: Smectite, Sericite, K-Feldspar
Economic & production
Development statusPast Producer
Discovery year1960
Identification
Deposit ID10021607
MRDS IDDE00284
RegionNA
Data scoreB
Coordinates39.71911, -113.2211
References
STAATZ, M.H., 1963, GEOLOGY OF MINERAL DEPOSITS IN THOMAS RANGE: USGS BULL. 1142-M.STAATZ, M.H. AND GRIFFITTS, W.R., 1961, BE BEARING TUFF IN THOMAS RANGE: ECONOMIC GEOLOGY V. 56, NO. 5.STAATZ, M.H., & OSTERWALD, F.W., 1959, GEOLOGY OF THOMAS RANGE FLUOR DISTRICT: USGS BULL. 1069.LINDSEY, D.A., GANON, H., AND MOUNTJOY, W., 1973, HYDROTHERMAL ALTERATION ASSOCIATED WITH BERYLLIUM DEPOSITS AT SPOR MOUNTAN, UTAH: U.S.G.S. PROFESSIONAL PAPER 818-A, 20 P.DAVIS, L.J., 1979, BERYLLIUM AND URANIUM MINERALIZATION IN THE SPOR MOUNTAIN AREA, JUAB COUNTY, UTAH: IN NEWMAN, G.W. AND GOODE, H.D., EDS., 1979 BASIN AND RANGE SYMPOSIUM AND GREAT BASIN FIELD CONFERENCE, ROCKY MOUNTAIN ASSOCIATION OF GEOLOGISTS AND UTAH GEOLOGICAL ASSOCIATION, P. 397-403.