The Centennial Cone Prospect is a beryllium mine located in Jefferson county, Colorado at an elevation of 8,360 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: 8,360 Feet (2,548 Meters)
Commodity: Beryllium
Lat, Long: 39.75417, -105.35694
Map: View on Google Maps
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Centennial Cone Prospect MRDS details
Site Name
Primary: Centennial Cone Prospect
Secondary: K-L Green Ranch
Commodity
Primary: Beryllium
Tertiary: Feldspar
Tertiary: Mica
Tertiary: Quartz
Tertiary: REE
Location
State: Colorado
County: Jefferson
District: Clear Creek Pegmatite Province
Land Status
Land ownership: Private
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
Owner Name: K. L. And G. S. Green
Home Office: Golden, Co.
Years: 1961 -
Owner Name: Alaska International Corp.
Home Office: Albuquerque, N.M.
Years: 1961 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
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
Not available
Structure
Type: R
Description: Front Range Uplift, Denver Basin
Type: L
Description: Junction Ranch Fault System, Unnamed Anticline
Alterations
Not available
Rocks
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Beryl
Ore: Microcline
Ore: Quartz
Ore: Monazite
Ore: Muscovite
Comments
Comment (Development): DEPOSIT HAS BEEN WORKED ONLY FOR MINERAL SPECIMENS
Comment (Workings): OPEN CUT
Comment (Location): ON NORTH FLANK OF CENTENNIAL CONE ; INFO FROM LAND.ST :(1975)
Comment (Production): PRESUMED CUMULATIVE PRODUCTION, YEARS UNKNOWN
References
Reference (Deposit): SHERIDAN, D.M., AND OTHERS, 1967, GEOLOGY AND URANIUM DEPOSITS OF THE RALSTON BUTTES DISTRICT, JEFFERSON COUNTY, COLORADO: USGS PROF. PAPER 520 (INCL. GEOLOGIC MAP OF RALSTON BUTTES QUAD)
Reference (Deposit): HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-44: USGS PROF. PAPER 227, P. 85-86
Reference (Deposit): WALDSCHMIDT, W.A., AND ADAMS, J.W., 1942, THE BERYL-MONAZITE PEGMATITE DIKE OF CENTENNIAL CONE, COLORADO: COLORADO SCHOOL OF MINES QUART., V. 37, NO. 3, P. 29-38
Reference (Deposit): USBM MIN. EXAM. FILE, REPT. OF 4/23/59 (FROM ORIGINAL CRIB RECORD)
Reference (Production): ORIGINAL CRIB RECORD (PROBABLY USBM REFERENCE)
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