Mine detail: A & C Prospect

Previously called 'A & C ClaimA & C ClaimsA & C No. 2 ClaimA & C Mine'

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Location

Lat / long:

39.12244, -105.45824

Resource(M)

Primary:	Beryllium
Secondary:	Tungsten, Lead, Molybdenum, Zinc
Tertiary:	Tin, Iron, Copper, Arsenic
Ore:	Bertrandite, Beryl, Cassiterite, Chalcopyrite, Covellite, Euclase, Galena, Molybdenite, Pyrite, Sphalerite, Uraninite, Wolframite
Gangue:	Fluorite, Muscovite, Quartz, Siderite, Topaz
Orebody form:	CUPOLAS, PODS, IRREGULAR LENSES
Discovery year:	1955

Production

Operation type:	Surface
Production size:	Unknown
Development status:	Past Producer
Production years:	around 1960

Geology

Host type:	Granite
Associated rock:	Redskin Granite;Silver Plume Granite
Associated type:	Granite
Structure:	Tarryall Mountains, Front Range, Puma Hills, Badger Flats, Badger Flats Fault, Minor Faults, Round Mountain Syncline
Tectonic:	Central Cordillera (Southern Rocky Mountains)
Alteration processes:	Greisenization

References

MRDS	D010266
MAS	80930037
DEP	10013783
Reference	{Deposit:: HAWLEY, C.C., 1969, GEOLOGY AND BERYLLIUM DEPOSITS OF THE LAKE GEORGE (OR BADGER FLATS) BERYLLIUM AREA, PARK AND JEFFERSON COUNTIES, COLORADO: USGS PROFESSIONAL PAPER 608-A, 44 P.}{Deposit:: MEEVES, H.C., 1966, NONPEGMATITIC BERYLLIUM OCCURRENCES IN ARIZONA, COLORADO, NEW MEXICO, UTAH, AND FOUR ADJACENT STATES: USBM REPORT OF INVESTIGATIONS 6828, P. 25-34.}{Deposit:: HAWLEY, C.C. AND GRIFFITTS, W.R., 1968, DISTRIBUTION OF BERYLLIUM, TIN, AND TUNGSTEN IN THE LAKE GEORGE AREA, COLORADO: USGS CIRCULAR 597, 18 P.}{Deposit:: HAWLEY, C.C. AND WOBUS, R.A., 1977, GENERAL GEOLOGY AND PETROLOGY OF THE PRECAMBRIAN CRYSTALLINE ROCKS, PARK AND JEFFERSON COUNTIES, COLORADO: USGS PROFESSIONAL PAPER 608-B, 77 P.}{Deposit:: SIEMS, P.L., 1963, BERYLLIUM: COLORADO SCHOOL OF MINES MINERAL INDUSTRIES BULLETIN, V. 6, NO. 3, 15 P.}{Deposit:: WORCESTER, P.G., 1919, MOLYBDENUM DEPOSITS OF COLORADO: CGS BULLETIN 14, P. 73-74.}{Deposit:: Mineral Property File}
Reporter	Wilson, Anna B., Collins, Donna B., Intermountain Field Operations Center (IFOC)