Commodities
PrimaryMica
SecondaryFeldspar
Commodity typeN
Deposit
Model32: Pegmatites
Deposit sizeS
WorkingsUnknown
Orebody formLENSOID
Materials
Ore mineralsMicrocline, Muscovite
GangueMagnetite, Sillimanite, Quartz
Geology
Host rockGneiss
Associated rockDiorite · Quartz Diorite Of Boulder Creek Age
StructureSouthern Front Range, Thirtynine Mile Volcanic Field
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
Economic & production
Development statusPast Producer
First production1950
Discovery year1950
Identification
Deposit ID10013517
MRDS IDD009864
RegionNA
Data scoreB
Coordinates38.69444, -105.47917
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, 1:62,500STERRETT, D.B., 1923, MICA DEPOSITS OF THE UNITED STATES: USGS BULLETIN 740, P. 51-55.BEVER, J.E., 1953, NOTES ON SOME MINERAL OCCURRENCES IN THE GUFFEY REGION, COLORADO: AMERICAN MINERALOGIST, V. 38, P. 138-141.MINOBRAS, 1974, Colorado and Utah Industrial Minerals.