Mine detail: North Star Mine

Previously called 'LulaRandall Copper PropertiesCora'

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Location

Lat / long:

32.82538, -111.3432

Resource(M)

Primary:	Copper, Silica
Secondary:	Silver, Gold
Ore:	Chalcocite, Chalcopyrite, Chrysocolla, Malachite, Tenorite
Gangue:	Chlorite, Quartz

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
First production started:	1949
Last production ended:	1970

Geology

Host type:	Monzonite,Diorite
Associated rock:	Oracle Granite;North Star Monzonite (Johnson, 1981)
Associated type:	Monzonite,Hornblendite,Dacite,Andesite
Structure:	Nw Trending Fault Forms Valley S Of Mine, Other Adits Also Along This Fault Zone
Alteration processes:	Supergene Hematite After Pyrite, Probable Supergene Chrysocolla

References

MRDS	M241192
DEP	10046294
Reference	{Deposit:: ABGMT-USBM FILE DATA}{Deposit:: ADMR NORTH STAR FILE}{Deposit:: USGS MF-778, 1978}{Deposit:: JOHNSON, GARY S., 1981 THE GEOLOGY AND GEOCHRONOLGY OF THE NORTHERN PICACHO MOUNTAINS, PINAL COUNTY, ARIZONA. UNIV. OF ARIZONA M.S. THESIS.}{Deposit:: PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.}{Other Database:: CIMRI}
Reporter	Gest, Don E., Orris, Greta J.