The Unnamed Manganese Prospect is a manganese mine located in Gunnison county, Colorado at an elevation of 8,501 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: 8,501 Feet (2,591 Meters)
Commodity: Manganese
Lat, Long: 38.36139, -107.18333
Map: View on Google Maps
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Unnamed Manganese Prospect MRDS details
Site Name
Primary: Unnamed Manganese Prospect
Commodity
Primary: Manganese
Location
State: Colorado
County: Gunnison
District: Goose Creek District
Land Status
Land ownership: BLM Administrative Area
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: Occurrence
Operation Type: Unknown
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: San Juan Volcanic Field, Gunnison Uplift
Type: L
Description: Gunnison Gold Belt, Unnamed Faults, Tolvar Peak Stock
Alterations
Not available
Rocks
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene
Analytical Data
Not available
Materials
Ore: Psilomelane
Comments
Comment (Location): PROSPECTS LIE ABOVE AND NE OF GOOSE CREEK ABOUT 1.25 MILE ABOVE CONFLUENCE WITH CEBOLLA CREEK AND 0.8 MILE NW OF DUBOIS MINE. ; INFO FROM LAND.ST :1975
Comment (Deposit): PROSPECT OCCUR IN BLACK VITROPHYRE AT BASE OF SAPINERO MESA TUFF, CHARACTERIZED BY CRYSTAL FRAGMENTS IN GROUNDMASS OF WELDED VITRIC ASH AND PUMICE AND BY REDDISH-BROWN SPHERULITES. VITROPHYRE IS OVERLAIN BY MAIN DEVITRIFIED WELDED TUFF, BOTH OF WHICH LIE IN FAULT CONTACT WITH DUBOIS GREENSTONE. FAULT WEST OF PROSPECTS TRENDS GENERALLY N 27 W. INTERSECTING THIS FAULT NW OF PROSPECTS IS SECOND FAULT TRENDING GENERALLY N 40 E. DEPOSIT IS BELIEVED TO BE SIMILAR TO THOSE DESCRIBED BY MUILENBURG (1919) CLOSER TO SAPINERO (SEE GOSS CLAIM). THERE, HIGHLY SILICEOUS IS HARD, COMPACT, FINELY GRANULAR, AND OCCURS AS BOTRYOIDAL MASSES IN POCKETS. FREQUENTLY OCCURS IN NETWORK OF SMALL VEINS UP TO FOUR INCHES WIDE, AND IN BRECCIA.
Comment (Workings): TWO SURFACE PROSPECTS
References
Reference (Deposit): MUILENBURG, G.A., 1919, MANGANESE DEPOSITS OF COLORADO: CGS BULL, 15, P. 37-44.
Reference (Deposit): OLSON, J.C., AND HEDLUND, D.C., 1973, GEOLOGIC MAP OF THE GATEVIEW QUADRANGLE, GUNNISON COUNTY, COLORADO: USGS MAP GQ-1071.
Colorado Mining Photos
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