Mine detail: Shirley Group

Previously called ''

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Location

Lat / long: 38.60806, -105.99365

Resource(B)

Primary: Beryllium, Niobium (Columbium), Tantalum, REE
Secondary: Feldspar, Mica
Ore: Albite, Beryl, Microcline, Muscovite
Gangue: Garnet, Orthoclase, Quartz

Production

Operation type: Unknown
Production size: None
Development status: Occurrence

Geology

Host rock:Migmatitic Gneiss
Host type:Gneiss
Structure:Southern Mosquito Range, Arkansas Valley Graben
Tectonic:Central Cordillera (Southern Rocky Mountains

References

MRDSD010240
DEP10013770
Reference{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. 24}{Deposit:: VAN ALSTINE, R.E., 1974, GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS SE QUADRANGLE, CHAFFEE COUNTY, COLORADO: USGS PROFESSIONAL PAPER 829, 19 P.}{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, COLORDADO: PH. D. THESIS, UNIVERSITY OF MICHIGAN, 131 P.}
ReporterCollins, Donna B.