Commodities
PrimaryFeldspar, Mica
TertiaryBeryllium
Commodity typeB
Deposit
Model32: Pegmatites
Deposit sizeS
WorkingsUnknown
Orebody formBLUNTLY TERMINATED ON SOUTH, TAPERING TO NORTH
Materials
Ore mineralsMicrocline, Muscovite
GangueBiotite
Geology
Host rockGneiss
StructureCurrant Creek Fault Zone, Southern Front Range, Thirtynine Mile Volcanic Field
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
Economic & production
Development statusPast Producer
First production1950
Discovery year1950
Identification
Deposit ID10013523
MRDS IDD009873
Alternate namesColorado Feldspar Company, Whisper ? Mine
RegionNA
Data scoreB
Coordinates38.6843, -105.48778
References
HANLEY, J. B., HEINRICH, E. W., PAGE, L. R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAPER 227, P. 42-55WOBUS, R. A., EPIS, R. C. AND SCOTT, G. R., 1979, GEOLOGIC MAP OF THE COVER MOUNTAIN QUADRANGLE, FREMONT, PARK, AND TELLER COUNTIES, COLORADO: USGS MAP I-1179, 1:62,500.STERRETT, D. B., 1923, MICA DEPOSITS OF THE UNITED STATES: USGS BULLETIN 740, P. 51-55