The Maggie Murphy Group Prospect is a iron mine located in Albany county, Wyoming.
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
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Maggie Murphy Group Prospect MRDS details
Site Name
Primary: Maggie Murphy Group Prospect
Secondary: Maggie Murphy Group
Commodity
Primary: Iron
Secondary: Copper
Secondary: Graphite
Tertiary: Zinc
Location
State: Wyoming
County: Albany
District: Esterbrook Area
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.
Administrative Organization: Medicine Bow
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Underground
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
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Chalcopyrite
Ore: Hematite
Ore: Pyrrhotite
Ore: Marcasite
Gangue: Graphite
Gangue: Hornblende
Gangue: Limonite
Gangue: Mica
Gangue: Quartz
Gangue: Malachite
Comments
Comment (Deposit): "A 107 ft. shaft was sunk on the north side of Horseshoe Creek, in the east-central part of sec. 21, T28N, R71W. "Rusty schist" at the surface gave way to a heavy, shallow body of pyrrhotite. A northeast trending graphite-pyrrhotite schist 1 ft. to 2 ft. thick underlies the pyrrhotite mass with a little chalcopyrite. Hornblende and quartz were mixed with pyrrhotite. Traces of sphalerite also reported." (Bull. 50, p. 39).
Comment (Deposit): "A graphite-pyrrhotite schist was encountered at 107 ft. depth." (Bull. 50, p. 94).
Comment (Location): Maggie Murphy claim is listed in Bull. 50, p. 94 (under Graphite) as being in Albany County, east-central part of sec. 21, T28N, R71W. (Record was plotting in Converse county, but with corrected lat/longs it is now in Albany Co.)
Comment (Commodity): "pyrrhotite sometimes contains commercial quantities of nickel (Bull. 50, p. 119)."
Comment (Deposit): QTZ VEIN BEARING PYRRHOTITE CUTS RED GRANITE, MICA & SCHIST (from deleted record 10182091)
Comment (Commodity): Report of an AEC airborne RA anomaly in the vicinity (from deleted record MAS 0560010074 (10229431).
Comment (Geology): MICA AND HORNBLENDE SCHIST LAYERS IN GRANITE
Comment (Deposit): 5 FT VEIN OF PYRRHOTITE BENEATH OXIDIZED ZONE. ANOTHER SHAFT FOUND PYRRHOTITE MIXED WITH COARSE-GRAINED MARCASITE AND A LITTLE DISSEMINATED CHALCOPYRITE. AT 50 FT PYRRHOTITE BECAME QUARTZOSE. PYRRHOTITE PASSED OUT OF THE SHAFT AT 60 FT.
Comment (Location): NORTH SIDE OF HORSESHOE CREEK
Comment (Location): County is in question. Bull. 50 states that this is Albany Co, and only gives the SW4 of the entire township. Most of the SW4 is in Converse County. The shaft on the map that is presumed to be the Maggie Murphy is in Converse County.
References
Reference (Deposit): WILSON, W.H., 1966, MINERAL RESOURCES OF Wyoming, GEOL SURV WYO BULL. 50, p. 39, 94, 119.
Pages: p. 39, 94, 119.
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