Mine detail: Bonus Extension Group

Previously called ''

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Location

Lat / long: 38.59944, -106.00058

Resource(B)

Primary: Beryllium
Secondary: Niobium (Columbium), Tantalum
Tertiary: Mica, Feldspar
Ore: Beryl, Columbite, Microcline, Muscovite, Tantalite
Gangue: Albite, Biotite, Magnetite, Martite, Quartz
Discovery year: 1955

Production

Operation type: Unknown
Production size: Small
Development status: Producer

Geology

Host rock:Migmatitic Gneiss
Host type:Schist,Gneiss
Structure:Southern Mosquito Range, Arkansas Valley Graben, Ne-Trending Zone Of Pegmatite Dikes
Tectonic:Central Cordillera (Southern Rocky Mountains)

References

MRDSD010256
DEP10087832
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. 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 ALSTINE, R.E., 1974, GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS SE QUADRANGLE, CHAFFEE COUNTY, COLORADO: USGS PROFESSIONAL PAPER 829, 19 P.}{Production:: VAN ALSTINE, R.E. (1974)}
ReporterCollins, Donna B.