The Mineral Butte Prospect is a copper mine located in Pinal county, Arizona at an elevation of 1,499 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: 1,499 Feet (457 Meters)
Commodity: Copper
Lat, Long: 33.11389, -111.57917
Map: View on Google Maps
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Mineral Butte Prospect MRDS details
Site Name
Primary: Mineral Butte Prospect
Commodity
Primary: Copper
Secondary: Gold
Secondary: Molybdenum
Location
State: Arizona
County: Pinal
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Deposit
Operation Category: Prospect
Deposit Type: Porphyry Cu
Operation Type: Unknown
Years of Production:
Organization:
Significant: Y
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Porphyry Cu
Orebody
Not available
Structure
Type: L
Structure: NW striking faults and fractures
Alterations
Alteration Type: L
Alteration: oxidation
Rocks
Name: Schist
Role: Host
Description: sequence of coarse grained quartz-muscovite schist, fine grained quartz-sericite-chlorite schist and some fine grained amphibole schist.
Age Type: Host Rock Unit
Age Young: Mesoproterozoic
Name: Quartz Monzonite
Role: Associated
Description: stock of variable composition, mostly biotite quartz monzonite
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Granite
Role: Host
Description: Mostly porphyritic biotite granite with large microcline phenocrysts, with local fine-grained border phases and aplite
Age Type: Host Rock Unit
Age Young: Mesoproterozoic
Analytical Data
Not available
Materials
Ore: Chrysocolla
Ore: Pyrite
Ore: Chalcopyrite
Comments
Comment (Development): LAND LEASED FROM GILA RIVER INDIANS
Comment (Deposit): The Mineral Butte deposit is hosted in Precambrian granite at the contact with a small Upper Cretaceous biotite quartz monzonite stock.
Comment (Geology): Units in the Mineral Butte area consist of Mesoproterozoic Pinal Schist which is a sequence of coarse grained quartz-muscovite schist, fine grained quartz-sericite-chlorite schist and some fine grained amphibole schist. The Pinal Schist was intruded by Mesoproterozoic granite equivalent to the Oracle Granite which is mostly porphyritic biotite granite with large microcline phenocrysts, with local fine-grained border phases and aplite. A few dikes of diabase cut the the granite in places. The Oracle Granite was intruded during the late Cretaceous by a stock of variable composition which is predominately biotite quartz monzonite. Copper mineralization is concentrated in the Precambrian granite near the granite-quartz monznite contact. The majority of copper mineralization is secondary. (Chaffee, 1976)
References
Reference (Deposit): Wilson, E., 1969, Mineral deposits of the Gila River Indian Reservation, Arizona, Arizona Bur. Mines Bull. 179, 34p.
Reference (Deposit): ABGMT FILE DATA.
Reference (Other Database): CIMRI
Reference (Reserve-Resource): Long, K.R., 1995, Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 35-68.
Reference (Deposit): Chaffee, M.A., 1976, Geochemical exploration techniques based on distribution of selected elements in rocks, soils, and plants, Mineral Butte copper deposit, Pinal County, Arizona: U.S. Geological Survey Bulletin 1278-D, 55 p.
Reference (Deposit): BALLA, 1972, PHD THESIS, UNIV OF AZ.
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.
