Rock King Prospect

The Rock King Prospect is a feldspar and mica mine located in Chaffee county, Colorado at an elevation of 8,720 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: Rock King Prospect  

State:  Colorado

County:  Chaffee

Elevation: 8,720 Feet (2,658 Meters)

Commodity: Feldspar, Mica

Lat, Long: 38.63222, -105.95889

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 Rock King Prospect

Rock King Prospect MRDS details

Site Name

Primary: Rock King Prospect


Commodity

Primary: Feldspar
Primary: Mica
Secondary: Beryllium
Tertiary: Niobium (Columbium)
Tertiary: Tantalum


Location

State: Colorado
County: Chaffee
District: Turret 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

Type: Unknown


Ownership

Owner Name: Harvey S. Moyer
Home Office: Turret, Co.
Years: 1950 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1937
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: Southern Mosquito Range, Thirty Nine Mile Volcanic Field, Arkansas Valley Graben

Type: L
Description: E-W-Trending Faults, Pegmatite Dikes


Alterations

Not available


Rocks

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

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

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

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


Analytical Data

Not available


Materials

Ore: Beryl
Ore: Albite
Ore: Microcline
Ore: Muscovite
Gangue: Garnet
Gangue: Quartz
Gangue: Biotite


Comments

Comment (Workings): LARGE BENCH CUT AT FOOT OF CLIFF; MOST DEVELOPMENT IN SOUTHERN PEGMATITE, WHICH IS 500 FT X 10 FT

Comment (Deposit): 3 UNZONED PARALLEL OUTCROPS; MOST BERYL MINED IN SOUTHERN OUTCROP; FINE-GRAINED, GRANITIC QUARTZ-POTASH FELDSPAR-BIOTITE-MUSCOVITE-PEGMATITES SPEARATED BY GRAY QUARTZITE

Comment (Commodity): BERYL CRYSTALS TO 8 FT IN LENGTH; COLUMBITE-TANTALITE OCCURS NEAR BERYL; ECONOMIC BERYL OCCURS ONLY IN NORTH AND SOUTH DIKES

Comment (Location): PEGMATITE FORMS NORTH WALL OF RAILROAD GULCH JUST WEST OF TURRET ROAD. ; INFO FROM LAND.ST :(1976)


References

Reference (Deposit): BOARDMAN, S.J., 1971, PRECAMBRIAN GEOLOGY AND MINERAL DEPOSITS OF THE SALIDA AREA, CHAFFEE COUNTY, COLORADO: PH.D. THESIS. UNIVERSITY OF MICHIGAN, 131 P.

Reference (Deposit): VAN DIVER, B.B., 1957, GEOLOGY OF THE CALUMET MINING DISTRICT, CHAFFEE COUNTY, COLORADO: UNIVERSITY OF COLORADO THESIS, P. 83

Reference (Production): BOARDMAN, S.J. (1976)

Reference (Deposit): SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOGIC MAP OF THE PUEBLO 1 DEG X 2 DEG QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP I-1022, 1:250,000

Reference (Deposit): MEEVES, H.C., HARRER, C.M., SALSBURY, M.H., KONSELMAN, A.S., SHANNON, S.S., JR., 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: ARIZONA, COLORADO, NEW MEXICO, SOUTH DAKOTA, UTAH, AND WYOMING: USBM INFORMATION CIRCULAR 8298, P. 24

Reference (Deposit): BOARDMAN, S.J., 1976, GEOLOGY OF THE PRECAMBRIAN METAMORPHIC ROCKS OF THE SALIDA AREA, CHAFFEE COUNTY, COLORADO: THE MOUNTAIN GEOLOGIST, V. 13, NO. 3, P. 89-100.

Reference (Deposit): HANLEY, J.B., HEINRICH, E.W., PAGE, L.R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAPER 227, P. 23-27


Colorado Mining Photos

Placer mines at Cripple Creek, Colorado ca. 1892

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