The Roscoe Gulch Pegmatites is a beryllium, mica, and feldspar mine located in Jefferson county, Colorado at an elevation of 7,461 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: 7,461 Feet (2,274 Meters)
Commodity: Beryllium, Mica, Feldspar
Lat, Long: 39.74722, -105.37278
Map: View on Google Maps
Satelite View
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Roscoe Gulch Pegmatites MRDS details
Site Name
Primary: Roscoe Gulch Pegmatites
Secondary: Roscoe Gulch Pegmatite
Commodity
Primary: Beryllium
Primary: Mica
Primary: Feldspar
Secondary: 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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface
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: Blackhawk Fault, Unnamed Syncline
Alterations
Not available
Rocks
Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Beryl
Ore: Monazite
Ore: Muscovite
Ore: Allanite
Ore: Microcline
Gangue: Garnet
Gangue: Magnetite
Gangue: Tourmaline
Comments
Comment (Deposit): TEN UNZONED PEGMATITES IN LIME-SILICATE GNEISS
Comment (Workings): OPEN CUTS
Comment (Location): NORTH OF CLEAR CREEK CANYON AND APPROX ONE MILE NW OF ROSCOE BERYL PROSPECT ; INFO FROM LAND.ST :(1975)
Comment (Deposit): Cobined ifno from 10166922 (derived from MAS 0080590163) and deleted that duplicate record. No references/citations were given.
References
Reference (Deposit): USBM MIN. EXAM. FILE, REPT. OF 6/1/59 (FROM ORIGINAL CRIB RECORD)
Reference (Deposit): MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 28
Reference (Deposit): SHERIDAN, D.M., AND OTHERS, 1972, GEOLOGIC MAP OF THE EVERGREEN QUADRANGLE, JEFFERSON COUNTY, COLORADO: USGS MAP I-786-A
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
