Mine detail: Margarita Mine Group

Previously called 'McdonaldGolden EagleRob Roy'

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Location

Lat / long:

31.44514, -111.25569

Resource(M)

Primary:	Gold, Silver
Secondary:	Lead, Copper, Zinc
Ore:	Chalcopyrite, Galena, Silver, Sphalerite
Gangue:	Quartz
Orebody form:	TABULAR
Other material:	Pyrite
Discovery year:	1895

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1934-1941
First production started:	1895
Last production ended:	1941

Geology

Host rock:	Cobre Ridge Tuff
Host type:	Tuff
Structure:	Block Faulting
Tectonic:	Basin And Range
Alteration processes:	Sericitization; Silicification; Propylitization; Qtz-Ser-Pyr

References

MRDS	M050245
DEP	10039541
Reference	{Deposit:: WILSON AND OTHERS, 1934, ARIZONA LODE GOLD MINES: ABM BULL 137.}{Deposit:: KNIGHT, L.H., JR., 1970, ORO BLANCO DISTRICT: UNIV. ARIZ. PH.D. THESIS.}{Deposit:: YEEND, WARREN, 1973.}{Deposit:: ABGMT-USBM FILE DATA.}{Deposit:: ABM BULL 191, P. 64.}{Deposit:: NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.}{Deposit:: SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: UNITED STATES BUREAU OF MINES SPECIAL PUBLICATION, 334 P.}{Other Database:: CIMRI}{Production:: KEITH, 1975.}{Reserve-Resource:: NIEMUTH, 1987; SAWYER AND OTHERS, 1992.}
Reporter	Johnson, Maureen G., Laraba, Peter (Calder, Susan R.), Orris, Greta J.