Mine detail: Illinois Mine

Previously called ''

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Location

Lat / long:

31.3707, -110.68789

Resource(M)

Primary:	Zinc, Copper
Secondary:	Lead, Silver
Tertiary:	Gold
Ore:	Chalcopyrite, Galena, Pyrite, Sphalerite
Gangue:	Quartz
Orebody form:	BUNCHES
Discovery year:	1875

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
Last production ended:	1959

Geology

Host rock:	Epitaph Dolomite
Host type:	Marble,Limestone
Associated type:	Volcanic Rock (Aphanitic),Rhyolite
Structure:	Mineral Deposits Of Washington-Duquesne Area Occupy A Limestone-Sediment Belt (2.5 Miles Long And 1.25 Miles Wide) Surrounded By Igneous Rocks Which Also Form Detached Masses And Dikes Within Belt, Limestone Near Contact Shows Evidence Of Sheeting Or Inconspicuous High-Angle Faulting
Tectonic:	N-S Trending Bonanza Fault Zone; Washington Camp Fault Block To West And Downthrown Duquesne Fault Block To East
Alteration processes:	Coarsely Crystalline Limestone Has Been Contact Metamorphosed To Marble

References

MRDS	M241343
DEP	10109795
Reference	{Deposit:: ABGMT-USBM FILE DATA}{Deposit:: USBM FILES, ILLINOIS MINE}{Deposit:: ADMR FILE DATA, ILLINOIS MINE}{Deposit:: BLM DISTRICT MINING SHEET 727}{Deposit:: ARIZ BUR MINES BULL 191, P. 78}{Deposit:: ABGMT FILES STANTON B. KEITH}{Deposit:: TENNEY, JAMES B. 1927-29, HISTORY OF MINING IN ARIZONA; ARIZONA BUREAU OF MINES, P. 293-300}{Deposit:: USGS MAP I-762}{Deposit:: LEHMAN, NORMAN E., 1978, THE GEOLOGY AND PYROMETASOMATIC ORE DEPOSITS OF THE WASHINGTON CAMP-DUQUESNE DISTRICT, SANTA CRUZ COUNTY, ARIZONA; PHD. DISSERTATION, UNIVERSITY OF ARIZONA, P. 126-143, MAPS}{Production:: KEITH, 1975}
Reporter	Calder, Susan R.