Combination Prospect

The Combination Prospect is a feldspar and mica mine located in Chaffee county, Colorado at an elevation of 8,599 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: Combination Prospect  

State:  Colorado

County:  Chaffee

Elevation: 8,599 Feet (2,621 Meters)

Primary Mineral: Feldspar, Mica

Lat, Long: 38.63306, -105.98222

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 Combination Prospect

Combination Prospect MRDS details

Site Name

Primary: Combination Prospect
Secondary: Allard Beryllium Prospect


Commodity

Primary: Feldspar
Primary: Mica
Secondary: Beryllium


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

Not available


Ownership

Owner Name: L. J. Doyle And N. J. Brookhart
Years: 1949 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1942
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: Southern Mosquito Range, Thirtynine Mile Volcanic Field, Arkansas Valley Graben

Type: L
Description: E-W-Trending Faults


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
Age Young: Neoproterozoic

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


Analytical Data

Not available


Materials

Ore: Feldspar
Ore: Beryl
Ore: Muscovite
Gangue: Biotite
Gangue: Garnet
Gangue: Quartz


Comments

Comment (Deposit): PEGMATITE TAPERS AT BOTH ENDS;

Comment (Location): HALF MILE SOUTH OF ABANDONED TURRET SCHOOLHOUSE AND 200 YARDS SOUTH OF TURRET ROAD; ALLARD PROSPECT NEAR THE COMBINATION PROSPECT--EXACT LOCATION UNKNOWN ; INFO FROM LAND.ST :(1976)

Comment (Workings): SHALLOW SHAFT, 2 SHALLOW CUTS ON WESTERN SLOPE

Comment (Deposit): PROBABLY NOT RICH ENOUGH IN FELDSPAR OR IN BERYL TO BE OF COMMERCIAL IMPORTANCE (HANLEY, 1950) ; INFO.SRC : 1 PUB LIT

Comment (Commodity): BERYL CRYSTALS BRIGHT BLUE, 3 X 6 X 12 INCHES; FELDSPAR RED, WHITE


References

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

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): 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): SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOGIC MAP OF THE PUEBLO 10 X 20 QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP I-1022, 1:250,000

Reference (Deposit): ARGALL, G.O., JR., 1949, INDUSTRIAL MINERALS OF COLORADO: COLORADO SCHOOL OF MINES QUARTERLY, V. 44. NO. 2, P. 52