North Star Mine

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

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.

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.