Little Abner Pegmatite

The Little Abner Pegmatite is a beryllium, ree, and feldspar mine located in Jefferson county, Colorado at an elevation of 7,651 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

Name: Little Abner Pegmatite  

State:  Colorado

County:  Jefferson

Elevation: 7,651 Feet (2,332 Meters)

Commodity: Beryllium, REE, Feldspar

Lat, Long: 39.76583, -105.34861

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Little Abner Pegmatite

Little Abner Pegmatite MRDS details

Site Name

Primary: Little Abner Pegmatite


Commodity

Primary: Beryllium
Primary: REE
Primary: Feldspar


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: 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

Form: TABULAR


Structure

Type: R
Description: Front Range Uplift, Denver Basin

Type: L
Description: Junction Ranch Fault System, Unnamed Anticline, Unnamed Overturned Anticline


Alterations

Not available


Rocks

Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Pegmatite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic

Name: Pegmatite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic


Analytical Data

Not available


Materials

Ore: Beryl
Ore: Microcline
Gangue: Monazite
Gangue: Garnet


Comments

Comment (Location): ABOVE UNNAMED TRIBUTARY OF ELK CREEK 2.3 MILES NW OF CONFLUENCE WITH CLEAR CREEK ; INFO FROM LAND.ST :(1975)

Comment (Production): PRESUMED ANNUAL PRODUCTION, YEARS UNKNOWN

Comment (Deposit): DUPLICATE D001819 DELETED ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT


References

Reference (Production): ORIGINAL CRIB RECORD (SEE USBM REFERENCE)

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): PARKER, R.L., 1963, NIOBIUM AND TANTALUM IN THE UNITED STATES: USGS MAP MR-36

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): USBM MIN. EXAM. FILE, REPT. 6/1/59 (FROM ORIGINAL CRIB RECORD)


Colorado Mining Photos

Placer mines at Cripple Creek, Colorado ca. 1892

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.