Mine detail: Copper Mountain Mine

Previously called 'Manganese Blue Ore BodyDetroit Copper Co Group'

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Location

Lat / long:

33.07593, -109.36843

Resource(M)

Primary:	Copper
Tertiary:	Zinc
Ore:	Brochantite, Chalcanthite, Chalcocite, Cuprite, Pyrite
Gangue:	Epidote, Garnet
Orebody form:	IRREGULAR
Other material:	Malachite
Discovery year:	1872

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1882
Last production ended:	1920

Geology

Host rock:	Longfellow Limestone
Host type:	Limestone
Associated rock:	Morenci Granite Porphyry
Associated type:	Quartz Monzonite
Structure:	Copper Mountain Fault Separates Rich Disseminated Chalcocite Ore From Barren Porphyry, Cuprite And Copper Carbonates Occur, Associated With A Small Mass Of Limestone Embedded In Porphyry, On The Boundary Between The Copper Mountain And Humboldt Mines; South Of The Main Adit Is A Rich Well-Defined Chalcocite Seam About 14 Inches Wide
Tectonic:	Complex Copper Mountain Fault System With Substantial Vertical Displacement; Fault Blocks Generally Downthrown To Ne
Alteration processes:	Oxidation To Greatly Varying Depths; Chalcocite Coats Large Bodies Of Sericitized Porphyry Containing Disseminated Pyrite

References

MRDS	M800424
DEP	10088902
Reference	{Deposit:: ABGMT-USBM FILE DATA.}{Deposit:: BLM DISTRICT SHEET 840.}{Deposit:: WATT, ROBERTA, 1956, HISTORY OF MORENCI ARIZONA, M.A. THESIS, UNIVERSITY OF ARIZONA.}{Deposit:: USGS PP 43, P. 276-278.}{Deposit:: STEVENS, H. J., 1911, THE COPPER HANDBOOK, V. X, P. 734-735, DETROIT COPPER MINING CO OF ARIZONA}{Deposit:: ARIZ BUR MINES BULL 149, NO. 15.}{Deposit:: BENNETT, K. C., 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, 153 P.}{Other Database:: CIMRI}
Reporter	Calder, Susan R.