The Strang Pegmatite is a mica, feldspar, and quartz mine located in Jefferson county, Colorado at an elevation of 7,999 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: 7,999 Feet (2,438 Meters)
Commodity: Mica, Feldspar, Quartz
Lat, Long: 39.84278, -105.37222
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.
Strang Pegmatite MRDS details
Site Name
Primary: Strang Pegmatite
Commodity
Primary: Mica
Primary: Feldspar
Primary: Quartz
Secondary: REE
Location
State: Colorado
County: Jefferson
District: Clear Creek Pegmatite Province
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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
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: Front Range Uplift, Denver Basin
Type: L
Description: Hurricane Hill Fault System, Unnamed Syncline, Idaho Springs-Ralston Shear Zone
Alterations
Not available
Rocks
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Muscovite
Ore: Microcline
Ore: Quartz
Comments
Comment (Location): ON HILLSIDE SOUTH OF RALSTON CREEK 0.9 MILE SW OF RALSTON CREEK RANCH ; INFO FROM LAND.ST :(1975)
References
Reference (Deposit): SHERIDAN, D.M., AND OTHERS, 1967, GEOLOGY AND URANIUM DEPOSITS OF THE RALSTON BUTTES DISTRICT, JEFFERSON COUNTY, COLORADO: USGS PROF. PAPER 520 (INCL. GEOLOGIC MAP OF RALSTON BUTTES QUAD)
Reference (Deposit): USBM MIN. EXAM. FILE, REPT. OF 2/2/59 (FROM ORIGINAL CRIB RECORD)
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
