Colorado · Fremont County
Past Producer

Mica Lode Mine

Fremont County, Colorado, United States
QuartzMicaFeldsparBerylliumREETantalumNiobium (Columbium)CopperLithiumBismuth
⌖ Show on mapUSGS source ↗
Description

Mica Mining And Mills Co (1904)

Commodities
PrimaryQuartz, Mica, Feldspar, Beryllium
SecondaryREE, Tantalum, Niobium (Columbium)
TertiaryCopper, Lithium, Bismuth
Commodity typeB
Deposit
Model32: Pegmatites
Deposit sizeS
WorkingsUnknown
Orebody form"TADPOLE-SHAPED"
Ore controlPegmatite, Foliation, Fault?
Materials
Ore mineralsBeryl, Bismutite, Chalcocite, Lepidolite, Malachite, Microcline, Muscovite
GangueAlbite, Garnet, Quartz, Tourmaline
Geology
Host rockMica Schist,Gneiss · Migmatitic Gneiss
Associated rockDiorite · Granodiorite
StructureNe-Trending Fault, Shear Zone, Southern Front Range, Canon City Embayment
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
Economic & production
Development statusPast Producer
First production1928
Discovery year1904
Identification
Deposit ID10013530
MRDS IDD009880
Alternate namesMica Lode, Micalode Mine, Mica Hill Deposit
RegionNA
Data scoreA
Coordinates38.4786, -105.3025
References
HANLEY, J. B., HEINRICH, E. W. AND PAGE, L. R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAPER 227, P. 34-37ECKEL, E. B., 1961, MINERALS OF COLORADO, A 100-YEAR RECORD: USGS BULLETIN 1114, P. 20, 72, 160, 339-340.TAYLOR, 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, 1:62,500MEEVES, H. C., HARRER, C. M., SALSBURY, M. H., KONSELMAN, A. S., SHANNON, S.S., JR., 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES; ARIZONA, COLORADO, NEW MEXICO, SOUTH DAKOTA, UTAH, AND WYOMING: USBM INFORMATION CIRCULAR 8298, P. 25STERRETT, D. B., 1923, MICA DEPOSITS OF THE UNITED STATES: USGS BULLETIN 740, P. 55-56LANDES, K. K., 1935, COLORADO PEGMATITES: AMERICAN MINERALOGIST, V.20, NO. 5, P. 328-329HEINRICH, E. W., 1948, PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY , COLORADO: AMERICAN MINERALOGIST, V. 33, NOS. 7-10,P. 420-448, 550-587.Colorado and Utah Industrial Minerals, 1974: MINOBRAS, 120 p.USBM PROD. TABS.HANLEY, J.B., 1950, P. 37; MEEVES, H.C., 1966, P. 8.