The Amster Prospect is a manganese mine located in Gila county, Arizona at an elevation of 3,970 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: 3,970 Feet (1,210 Meters)
Commodity: Manganese
Lat, Long: 33.4375, -110.75056
Map: View on Google Maps
Amster Prospect MRDS details
Site Name
Primary: Amster Prospect
Commodity
Primary: Manganese
Location
State: Arizona
County: Gila
District: Globe Hills District
Land Status
Land ownership: Federal
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: Surface
Ownership
Owner Name: Mrs. E. A. Borge
Years: 1961 -
Production
Year: 1954
Material type: MN
Description: Ap_Grade: ^23.8% Mn
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Not available
Alterations
Not available
Rocks
Name: Diabase
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Diabase
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Pyrolusite
Ore: Wad
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Deposit): ANOTHER MANGANIFEROUS OCCURENCE, PROBABLY ON THE ADJOINING MORLAY CLAIMS, CROPS OUT ABOUT 700 FT. NORTHEAST OF THE AMSTER OPENCUT. THE FRACTURE STRIKES N 50 E AND DIPS STEEPLY NORTHWEST. IT HAS AN EXPOSED LENGTH OF OR ABOUT 100 FT. AND THE MORE HIGHLY MINERALIZED PARTS ARE 1 TO 4 FT. WIDE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Location): INFO FROM LAND.ST :(1964)
Comment (Development): FORMERLY PART OF GROUP OF CLAIMS BELONGING TO THE SUPERIOR AND BOSTON MINING CO
References
Reference (Deposit): FARNHAM, L. L., STEWART, L. A., DELONG, C. W., 1961 , MANGANESE DEPOSITS OF EASTERN ARIZONA: USBM INFORMATION CIRCULAR 7990 , P. 75
Reference (Production): USBM INF. CIRC. 7990 , P. 75
Arizona Gold
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.
