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
Elevation: 8,720 Feet (2,658 Meters)
Commodity: Feldspar, Mica
Lat, Long: 38.63222, -105.95889
Map: View on Google Maps
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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
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