The North Star Mine is a copper and silica mine located in Pinal county, Arizona at an elevation of 2,001 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: 2,001 Feet (610 Meters)
Commodity: Copper, Silica
Lat, Long: 32.82528, -111.34250
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.
North Star Mine MRDS details
Site Name
Primary: North Star Mine
Secondary: Lula
Secondary: Randall Copper Properties
Secondary: Cora
Commodity
Primary: Copper
Primary: Silica
Secondary: Silver
Secondary: Gold
Location
State: Arizona
County: Pinal
District: North Star District
Land Status
Land ownership: BLM Administrative Area
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: Unknown
Ownership
Owner Name: Randall, Frank
Years: 1972 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1949
Year Last Production: 1970
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Nw Trending Fault Forms Valley S Of Mine, Other Adits Also Along This Fault Zone
Alterations
Alteration Type: L
Alteration Text: Supergene Hematite After Pyrite, Probable Supergene Chrysocolla
Rocks
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Chalcocite
Ore: Chalcopyrite
Ore: Tenorite
Ore: Chrysocolla
Gangue: Quartz
Gangue: Chlorite
Comments
Comment (Location): MAIN SHAFT USED, BUT WORKINGS AND CLAIMS EXTEND NORTH AND EAST INTO THE EAST EDGE OF SECTION 7 AND E SECTION 6 ; INFO FROM LAND.ST :(1979)
Comment (Development): OPERATORS INCLUDED GUZMAN AND SCHWARTZ, 1962, DIETZ AND STONE, G.W. MINCLAY, D. DANIELS, AND EARNEST RAND ON CORA CLAIMS, 1956. 82 UNPATENTED CLAIMS, NORTH STAR AND CORA GROUPS. RECENT DRILLING 200+ FT BY A MAJOR COMPANY, 1976 REPORT
Comment (Deposit): DIMENSIONS GIVEN ARE FOR INDIVIDUAL VEINS
Comment (Geology): CONTACT BETWEEN YOUNGER GRANODIORITE AND PREC GRANODIORITE IS UNCLEAR
Comment (Commodity): CHRYSOCOLLA BY FAR MOST COMMON MINERAL
Comment (Workings): UNDERGROUND WORKINGS FOR COPPER, OPEN PITS AND CUTS FOR SILICA (1962) DEEPEST SHAFT 340 FT, BUT IN 1962, 45 FT WAS DEEPEST BEING WORKED.
References
Reference (Deposit): ABGMT-USBM FILE DATA
Reference (Deposit): ADMR NORTH STAR FILE
Reference (Deposit): USGS MF-778, 1978
Reference (Deposit): JOHNSON, GARY S., 1981 THE GEOLOGY AND GEOCHRONOLGY OF THE NORTHERN PICACHO MOUNTAINS, PINAL COUNTY, ARIZONA. UNIV. OF ARIZONA M.S. THESIS.
Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.
Reference (Other Database): CIMRI
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.
