Mine detail: Grand Reef Mine

Previously called 'Includes Grand Reef, Aravaipa, Dogwater, and Silver Cable ClaimsKlondike Area'

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Location

Lat / long:

32.89093, -110.32373

Resource(B)

Primary:	Lead, Copper
Secondary:	Silver, Zinc, Gold
Tertiary:	Silica, Molybdenum, Fluorine-Fluorite, Barium-Barite
Ore:	Anglesite, Barite, Chalcopyrite, Chrysocolla, Fluorite, Galena, Malachite, Sphalerite, Wulfenite
Gangue:	Quartz
Orebody form:	TABULAR
Discovery year:	1890

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1915

Geology

Host rock:	Pinal Schist
Host type:	Schist,Limestone,Volcanic Rock (Aphanitic)
Associated rock:	Horse Mountain Volcanics;Goodwin Canyon Quartz Monzonite
Associated type:	Quartz Monzonite,Volcanic Rock (Aphanitic)
Structure:	Block Faulting Trending Nnw, Minor Pre-Cretaceous Folding Trending E And Ne, Grand Reef Fault (Low Angle Fault)
Tectonic:	Basin & Range
Alteration processes:	Silicification

References

MRDS	M050152
DEP	10039486
Reference	{Deposit:: SIMONS, 1964, USGS PP 461, 173 P.}{Deposit:: ROSS, 1925, USGS BULL 763, 120 P.}{Deposit:: DENTON, 1947, USBM RI 4007.}{Deposit:: WILSON, 1950, ABM BULL 156.}{Deposit:: PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERAL CARD FILES.}{Deposit:: VAN ALSTINE, R.E., AND MOORE, R.T., 1969, FLUORSPAR, IN ABM BULLETIN 180, USGS BULLETIN 871, P. 352.}{Deposit:: MINERALS AVAILABILITY SYSTEM: ARIZONA FLUORSPAR, ARIZONA DMR, MARCH 1976.}{Deposit:: PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.}{Other Database:: CIMRI}
Reporter	Peterson, Jocelyn A., Carbonaro, Marguerite M., Orris, Greta J.