The A & C Prospect is a beryllium mine located in Park county, Colorado at an elevation of 8,701 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 8,701 Feet (2,652 Meters)
Commodity: Beryllium
Lat, Long: 39.12244, -105.45766
Map: View on Google Maps
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A & C Prospect MRDS details
Site Name
Primary: A & C Prospect
Secondary: A & C Mine
Secondary: A & C Claim
Secondary: A & C Claims
Secondary: A & C No. 2 Claim
Commodity
Primary: Beryllium
Secondary: Zinc
Secondary: Tungsten
Secondary: Molybdenum
Secondary: Lead
Tertiary: Arsenic
Tertiary: Iron
Tertiary: Tin
Tertiary: Copper
Location
State: Colorado
County: Park
District: Lake George (Badger Flats) Beryllium Area (Mountain Dale District)
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1966
Time Period: 1956-1966
Material type: BE ORE EST
Description: Cp_Grade: ^8% Beo
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface
Discovery Year: 1955
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: CUPOLAS, PODS, IRREGULAR LENSES
Structure
Type: R
Description: Tarryall Mountains, Front Range, Puma Hills, Badger Flats
Type: L
Description: Badger Flats Fault, Minor Faults, Round Mountain Syncline
Alterations
Alteration Type: L
Alteration Text: Greisenization
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Analytical Data: MASSES OF GALENA CONTAIN 0.3-0.7% AG, 0.3-1.5% BI, 0.007-0.7% CU
Materials
Ore: Sphalerite
Ore: Euclase
Ore: Molybdenite
Ore: Wolframite
Ore: Bertrandite
Ore: Chalcopyrite
Ore: Covellite
Ore: Uraninite
Ore: Galena
Ore: Beryl
Ore: Pyrite
Ore: Cassiterite
Gangue: Siderite
Gangue: Topaz
Gangue: Fluorite
Gangue: Muscovite
Gangue: Quartz
Comments
Comment (General): Anna Wilson (USGS) merged information from 10167591 with this record. There were 2 discrepancies. 10167591 called this a Past Producer (and based on Production Comment #2, it is), but 10013783 was labeled Occurrence.
Comment (Location): 10167591 called this Private, but 10013783 classifies it as National Forest. This has not been resolved.
Comment (Production): 10167591 called this a Past Producer (and based on Production Comment #1, it is), but 10013783 was labeled Occurrence.
Comment (Production): SELECTIVELY MINED, HAND SORTED TO PRODUCE ABOVE GRADE; IN 1960 1 TON/WEEK BEING STOCKPILED
Comment (Deposit): THE REDSKIN STOCK IS ZONED, WITH NEARLY ALL OF THE BERYLLIUM DEPOSITS OCCURRING IN THE GRANITE-APLITE OR PORPHYRITIC GRANITE FACIES OF THE GREISENIZED REDSKIN GRANITE. EVEN THOSE DEPOSITS NOT ACTUALLY IN THE REDSKIN GRANITE ARE SPATIALLY AND GENETICALLY RELATED TO IT.
Comment (Location): CHINA WALL AREA ; INFO FROM LAND.ST :(1976)
Comment (Commodity): NONPEGMATITIC BERYLLIUM DEPOSITS; BERYL OCCURS AS HEXAGONAL CRYSTALS AND MASSIVE POIKILOBLASTIC GRAINS.
References
Reference (Production): MEEVES, H.C., 1966
Reference (Deposit): WORCESTER, P.G., 1919, MOLYBDENUM DEPOSITS OF COLORADO: CGS BULLETIN 14, P. 73-74.
Reference (Deposit): SIEMS, P.L., 1963, BERYLLIUM: COLORADO SCHOOL OF MINES MINERAL INDUSTRIES BULLETIN, V. 6, NO. 3, 15 P.
Reference (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.
Reference (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.
Reference (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.
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.
Reference (Deposit): Mineral Property File
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