Mine detail: Homestake Mine

Previously called ''

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Location

Lat / long: 38.62694, -105.9567

Resource(B)

Primary: Feldspar
Secondary: Mica, Beryllium, REE
Ore: Albite, Apatite, Beryl, Muscovite
Gangue: Quartz
Orebody form: FUNNEL-SHAPED PLUG
Discovery year: 1944

Production

Operation type: Unknown
Production size: Yes
Development status: Past Producer
First production started: 1950
Last production ended: 1963

Geology

Host rock:Migmatitic Gneiss
Host type:Quartzite,Gneiss
Structure:Southern Mosquito Range, Thirtynine Mile Volcanic Field, Arkansas Valley Graben
Tectonic:Central Cordillera (Southern Rocky Mountains)

References

MRDSD010135
DEP10101833
Reference{Deposit:: HANLEY, J.B., HEINRICH, E.W., PAGE, L.R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAPER 227, P. 23-27}{Deposit:: SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOGIC MAP OF THE PUEBLO 1 DEG X 2 DEG QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP I-1022, 1:250,000}{Deposit:: VAN ALSTINE, R.E., 1969, GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS NE QUADRANGLE, CHAFFEE COUNTY, COLORADO: USGS PROFESSIONAL PAPER 626, P. 45}{Deposit:: MEEVES, 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. 23}{Deposit:: BOARDMAN, S.J., 1976, GEOLOGY OF THE PRECAMBRIAN METAMORPHIC ROCKS OF THE SALIDA AREA, CHAFFEE COUNTY, COLORADO: THE MOUNTAIN GEOLOGIST, V. 13, NO. 3, P. 89-100.}{Deposit:: BOARDMAN, S.J., 1971, PRECAMBRIAN GEOLOGY AND MINERAL DEPOSITS OF THE SALIDA AREA, CHAFFEE COUNTY, COLORADO: PH D THESIS. UNIVERSITY OF MICHIGAN, 131 P.}{Deposit:: VAN DIVER B.B., 1957, GEOLOGY OF THE CALUMET MINING DISTRICT, CHAFFEE COUNTY, COLORADO: UNIVERSITY OF COLORADO THESIS, P. 83-84}{Production:: VAN ALSTINE, R.E. (1969); VAN DIVER, B.B. (1957)}
ReporterCollins, Donna B.