Mine detail: Empire No. 2 Shaft.

Previously called 'Gold Coin'

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Location

Lat / long:

32.01819, -110.05649

Resource(M)

Primary:	Copper, Silver
Tertiary:	Lead, Tungsten
Ore:	Bornite, Chalcopyrite, Galena
Orebody form:	IRREGULAR

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1909

Geology

Host rock:	Horquilla Limestone Pennsylvanian Limestone With Abundant Thin Beds Of Shale
Host type:	Limestone
Associated rock:	Texas Canyon
Associated type:	Quartz Monzonite
Structure:	Tertiary Block Faulting Trending Nw. ; Reg.Trends: Late Cretaceous Or Early Tertiary N And Nw Trending Folds And Thrust Faulting Overriding To Ne.
Tectonic:	Basin And Range.
Alteration processes:	Partially Silicated Limestone.

References

MRDS	M050016
DEP	10103730
Reference	{Deposit:: KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P. 59.}{Deposit:: COOPER AND SILVER, 1964, USGS PP 416}{Deposit:: LIVINGSTON, MAUGER, BENNETT, AND LAUGHLIN, 1967, JGR, V. 72, P. 1361-1375}{Deposit:: 1964 GEOLMAP U.S. GEOLOGICAL SURVEY, COOPER AND SILVER, PROF. PAPER 41}{Production:: KEITH, 1973, ARIZ. BUR. OF MINES BULL. 187.}
Reporter	Bergquist, Joel R., Rodriguez, Ignacio (Gest, Don E.)