Mine detail: Boomer Mine

Previously called 'East BoomerOuthouse Lode, Mammoth Lode, Florman Shaft'

Location:	Park County, Colorado, United States, North America
Lat / long:	39.07639, -105.44891
dep_id:	10013786
mrds_id:	D010271
Commodity type:	metallic
Major mineral:	Beryllium
Minor mineral:	Silver, Uranium, Molybdenum, Tungsten
Trace mineral:	Lead, Zinc, Copper, Arsenic, Iron, Tin
Operation type:	Unknown
Production size:	Small ammount of material produced
Development status:	Past Producer
ore:	Bertrandite, Beryl, Cassiterite, Chalcopyrite, Covellite, Euclase, Galena, Molybdenite, Pyrite, Silver, Sphalerite, Uraninite, Wolframite
gangue:	Fluorite, Muscovite, Quartz, Siderite, Topaz
orebody_fm:	CUPOLAS, PODS, IRREGULAR LENSES
work_type:	Surface/Underground
alteration:	Greisenization
ore_ctrl:	Greisenized Rocks; Deposits Localized By Fissures (Especially Ne- And Nw-Trending Fracture Sets), Contacts, Favorable Rock Units; Boomer Vein
Reporter:	Collins, Donna B.
hrock_unit:	Idaho Springs Formation
hrock_type:	Gneiss,Amphibolite,Pegmatite,Granite
arock_unit:	Redskin Granite
arock_type:	Granite
Structure:	Tarryall Mountains, Front Range, Puma Hills, Badger Flats, Badger Flats Fault, Minor Faults (Especially Steeply-Dipping Ne- And Nw-Trending Faults), Round Mountain Syncline, Boomer Cupola, Boomer Vein
tectonic:	Central Cordillera (Southern Rocky Mountains)
Year first produced:	1895
yr_lst_prd:	1965
disc_yr:	1895
References:	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:: SHARP, W.N. AND HAWLEY, C.C., 1960, BERTRANDITE-BEARING GREISEN, A NEW BERYLLIUM ORE, IN THE LAKE GEORGE DISTRICT, COLORADO, IN SHORT PAPERS IN THE GEOLOGICAL SCIENCES: USGS PROFESSIONAL PAPER 400-B, P. B73-B74. Deposit:: HAWLEY, C.C., SHARP, W.N., GRIFFITTS, W.R.,1960, PRE-MINERALIZATION FAULTING IN THE LAKE GEORGE AREA, PARK COUNTY, COLORADO, IN, SHORT PAPERS IN THE GEOLOGICAL SCIENCES: USGS PROFESSIONAL PAPER 400-B, P. B71-B73 Deposit:: GALLAGHER, G.L., 1976, URANIUM FAVORABILITY OF PRECAMBRIAN ROCKS IN THE BADGER FLATS-ELKHORN THRUST AREA, PARK AND TELLER COUNTIES, COLORADO: USERDA REPORT GJBX-55(76), 30 P. Deposit:: NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 365 Production:: HAWLEY, C.C. (1969); SIEMS, P.L. (1963)