Commodities
PrimaryMica, Feldspar
SecondaryTantalum, REE, Niobium (Columbium)
TertiaryTungsten
Commodity typeB
Deposit
Deposit sizeN
Orebody formLENSOID
Ore controlPegmatite
Materials
Ore mineralsEuxenite, Monazite, Muscovite, Scheelite
GangueCordierite, Kyanite, Sillimanite, Spinel, Vesuvianite
Geology
Host rockGneiss · Biotite Gneiss
Associated rockDiorite · Granodiorite Of Boulder Creek Age
StructureSouthern Front Range, Thirtynine Mile Volcanic Field, Ne-Trending Fault
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
Economic & production
Development statusOccurrence
Discovery year1944
Identification
Deposit ID10013953
MRDS IDD010527
Alternate namesLittle Joe From Kokomo Claim Adjoining, Famous Lodge Pegmatites
RegionNA
Data scoreB
Coordinates38.74861, -105.49225
References
HANLEY, J.B., HEINRICH, E.W., PAGE, L.R., 1950, PEGMATITE INVESTIGA TIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAP ER 227, P. 105WOBUS, R.A. AND EPIS, R.C., 1978, GEOLOGIC MAP OF THE FLORISSANT 15 -MINUTE QUADRANGLE, PARK AND TELLER COUNTIES, COLORADO: USGS MAP I-104 4, 1:62,500.LEMMON, D.M. AND TWETO, O.L., 1962, TUNGSTEN IN THE UNITED STATES: USGS MAP MR-25, 1:500,000.WOBUS, R.A., EPIS, R.C., SCOTT, G.R., 1979, GEOLOGIC MAP OF THE COV ER MOUNTAIN QUADRANGLE, FREMONT, PARK, AND TELLER COUNTIES, COLORADO: USGS MAP I-1179, 1:62,500.VANDERWILT, J.W., 1947, MINERAL RESOURCES OF COLORADO: COLORADO MIN ERAL RESOURCES BOARD, P. 469.DEL RIO, S.M., 1960, MINERAL RESOURCES OF COLORADO; FIRST SEQUEL: C OLORADO MINERAL RESOURCES BOARD, P. 240