Commodities
PrimaryFeldspar
SecondaryMica
TertiaryBeryllium
Commodity typeB
Deposit
Model32: Pegmatites
Deposit sizeS
Orebody formL-SHAPED IN PLAN
Ore controlPegmatites, Host Rock Foliation
Materials
Ore mineralsBeryl, Microcline, Muscovite
GangueCalcite, Garnet, Magnetite, Quartz, Sericite
Geology
Host rockGneiss,Pegmatite · Migmatitic Gneiss
Associated rockDiorite · Quartz Diorite
StructureSouthern Front Range, Canon City Embayment, Eightmile Park, Ne-Trending Faults
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
Economic & production
Development statusPast Producer
Discovery year1945
Identification
Deposit ID10087801
MRDS IDD009887
RegionNA
Data scoreB
Coordinates38.45973, -105.35001
References
HEINRICH, E. W., 1948, PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADO: THE AMERICAN MINERALOGIST, V. 33, NOS. 7-10, P. 420-448, 550-587TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A. AND EPIS, R. C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE ROYAL GORGE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-869, 1:250,000