The Star Girl Mine is a mica and feldspar mine located in Park county, Colorado at an elevation of 9,249 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: 9,249 Feet (2,819 Meters)
Commodity: Mica, Feldspar
Lat, Long: 38.69833, -105.48250
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.
Star Girl Mine MRDS details
Site Name
Primary: Star Girl Mine
Secondary: Colorado Feldspar Company Mine
Commodity
Primary: Mica
Primary: Feldspar
Tertiary: Beryllium
Location
State: Colorado
County: Park
District: Micanite District
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
Type: Unknown
Ownership
Owner Name: Colorado Feldspar Co.
Home Office: Canon City, Co.
Years: 1979 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1950
Discovery Year: 1950
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 Front Range, Thirtynine Mile Volcanic Field
Alterations
Not available
Rocks
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: Muscovite
Ore: Microcline
Ore: Beryl
Gangue: Garnet
Gangue: Apatite
Gangue: Biotite
Comments
Comment (Deposit): 3 ZONES: WALL ZONE IS QTZ-MICROCLINE-PLAGIOCLASE-MUSCOVITE PEGMATITE, INTERMEDIATE ZONE IS THIN, DISCONTINUOUS QUARTZ-PLAGIOCLASE-MUSCOVITE PEGMATITE, CORE IS QUARTZ-MICROCLINE PEGMATITE; BORDER ZONE IN SOME PLACES
Comment (Reserve-Resource): ESTIMATED TO BE ONLY A FEW HUNDRED TONS EACH OF SCRAP MICA AND MICROCLINE AS RESERVES (1950)
Comment (Location): INFO FROM LAND.ST :(1976)
Comment (Workings): INCLINED SHAFT AT LEAST 30-FT DEEP, 2 LEVELS OF DRIFTS, (ONE AT 15-FT, OTHER AT 30 FT); OPEN CUT 60X50X30 FT DEEP
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. 42-55
Reference (Deposit): WOBUS, R. A., EPIS, R. C. AND SCOTT, G. R., 1979, GEOLOGIC MAP OF THE COVER MOUNTAIN QUADRANGLE, FREMONT, PARK, AND TELLER COUNTIES, COLORADO: USGS MAP I-1179, 1:62,500.
Colorado Mining Photos
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