Commodities
PrimaryBeryllium
Commodity typeM
Deposit
Deposit sizeN
Orebody formTABULAR
Materials
Ore mineralsBeryl
GangueTopaz
Geology
Host rockGneiss · Idaho Springs Formation---Feldspar-Rich Gneiss Interlayered With Hornblende Gneiss
Associated rockPegmatite · Pegmatite
StructureFront Range Uplift, Denver Basin, Floyd Hill Fault Zone
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusOccurrence
Identification
Deposit ID10013762
MRDS IDD010226
Alternate namesBeaver Brook Pegmatite
RegionNA
Data scoreB
Coordinates39.70943, -105.39976
References
HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-44: USGS PROF. PAPER 227, P. 30SHERIDAN, D.M., AND MARSH, S.P., 1976, GEOLOGIC MAP OF THE SQUAW PASS QUADRANGLE, CLEAR CREEK, JEFFERSON, AND GILPIN COUNTIES, COLORADO: USGS MAP GQ-1337