The Black Metal Group is a tungsten and tin mine located in Pennington county, South Dakota at an elevation of 5,240 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: 5,240 Feet (1,597 Meters)
Commodity: Tungsten, Tin
Lat, Long: 43.94694, -103.55806
Map: View on Google Maps
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Black Metal Group MRDS details
Site Name
Primary: Black Metal Group
Commodity
Primary: Tungsten
Primary: Tin
Location
State: South Dakota
County: Pennington
District: Hill City 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.
Administrative Organization: Black Hills National Forest
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Black Hills
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Mica Schist
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Wolframite
Ore: Cassiterite
Ore: Scheelite
Gangue: Tourmaline
Gangue: Pyrite
Gangue: Quartz
Gangue: Mica
Comments
Comment (Deposit): 9 PATENTED CLAIMS TOTALLING 180 ACRES.
Comment (Workings): A VERTICAL EAST-WEST VEIN ON BLACK METAL NO. 3 WAS DEVELOPED BY 60 FT OF TRENCHING AND & 47 FT SHAFT. ANOTHER VEIN ON SAME CLAIM IS 6 TO 8 INCHES WIDE AND STRIKES N23W AND DIPS STEEPLY NE. A 65-FOOT VERTICAL SHAFT WITH 30 FEET OF DRIFTING TO THE NORTH AND A SIMILAR DISTANCE TO THE SOUTH FROM ITS BASE EXPOSES A 6 TO 8 INCH VERTICAL VEIN ON THE BLACK METAL NO. 6 LODE. TWO TEST PITS ON THE BLACK METAL NO. 5 REVEAL A 9- TO 12- INCH VEIN WHICH STRIKES N 50 TO 55 DEG E AND DIPS 45 DEG NORTHWEST, ASSESSMENT PITS AND EXPLORATORY TRENCHES EXPOSE LESSER VEINS ON OTHER CLAIMS.
Comment (Geology): THE CASSITERITE IS LIGHT COLORED AND IS MIXED WITH WOLFRAMITE, OCCURING IN MASSES UP TO 2 LBS. IN WEIGHT
References
Reference (Deposit): U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707
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