The Santa Cruz is a copper mine located in Pinal county, Arizona at an elevation of 1,329 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 1,329 Feet (405 Meters)
Commodity: Copper
Lat, Long: 32.8997, -111.88170
Map: View on Google Maps
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Santa Cruz MRDS details
Site Name
Primary: Santa Cruz
Secondary: Franny-Granny
Secondary: Francisco Grande
Secondary: Fanny-Granny
Secondary: CASA GRANDE
Commodity
Primary: Copper
Secondary: Molybdenum
Tertiary: Silver
Tertiary: Gold
Location
State: Arizona
County: Pinal
District: Casa Grande District
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: TEXACO
Home Office: 2000 Westchester Ave. White Plains NY 10650 United States
Info Year: 1998
Owner Name: HANNA MINING CO
Home Office: 100 Erieview Plaza Cleveland OH 44114 United States
Info Year: 1998
Owner Name: McMoRan Exploration Inc
Percent: 50.00
Home Office: PO Box 51777 1615 Poydras Street New Orleans LA 70112 United States
Info Year: 1998
Owner Name: GRUPO MEXICO SA DE CV
Percent: 50.00
Home Office: Campos Eliseos 400 Colonia Lomas de Chapultepec Mexico D.F. MEX 11000 Mexico
Info Year: 1998
Owner Name: Freeport Mcmoran Copper Co.
Info Year: 1988
Owner Name: Asarco (American Smelting And Refining Co.)
Info Year: 1988
Production
Not available
Deposit
Record Type: Deposit
Operation Category: Past Producer
Deposit Type: Porphyry Cu
Operation Type: Underground
Mining Method: Unknown
Discovery Year: 1976
Discovery Method: Geological Inference
Years of Production:
Organization:
Significant: Y
Deposit Size: L
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Model Name: Porphyry Cu
Orebody
Not available
Structure
Type: L
Structure: Faulting
Type: R
Structure: extension, horst and graben faulting,
Alterations
Alteration Type: L
Alteration: Hypogene and supergene
Rocks
Name: Diabase
Role: Host
Description: Dikes
Age Type: Host Rock
Age Young: Proterozoic
Name: Monzonite
Role: Host
Description: dikes of biotite-quartz-feldspar porphyry
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Granite
Role: Host
Age Type: Host Rock Unit
Age Young: Mesoproterozoic
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Molybdenite
Ore: Chrysocolla
Ore: Chalcopyrite
Ore: Atacamite
Ore: Chalcocite
Unknown: Covellite
Comments
Comment (Deposit): Property Is Also Located In T6s, R4e, Secs. 13 And 24. Mining District Name Is Actually Francisco Grande. It Should Be Noted That This Ore Body Is Probably Contiguous With The Casa Grande Ore Body, With Split Ownership. The Bureau Of Mines Is Currently Doing Research On Santa Cruz.
Comment (Reserve-Resource): Reserves Also Contain Some Gold And Silver.
Comment (Identification): Data merged from Francisco Grande Deposit ID 10097042
Comment (Deposit): The High Grade Of The Ore Body Is Due To A Supergene Enrichment Zone Composed Of Atacmite And Chrysocolla In The Oxide Zone.
Comment (Location): Info From Land.St :1964
References
Reference (Geology): Kreis, H.G., 1995, Geology of the Santa Cruz porphyry copper deposit; in Pierce, F.W. and Bolm, J.G., eds., Porphyry Copper Deposits of the American Cordillera, Arizona Geological Society, Digest 20, p. 364-365.
Reference (Reserve-Resource): Worthington, T., 1996, Asarco advances in situ copper project in Arizona; The Northern Miner, March 11 issue, p. C9.
Reference (Reserve-Resource): Arizona Department Of Mines And Mineral Resources. Unpublished, Public Files Data, 1988; Available Upon Request From Admmr, Phoenix, Az.
Reference (Reserve-Resource): Pay Dirt. Getty Pays $10 Million For Land Near Casa Grande Orebody. No. 541, July 1984, Pp. 21a-22a.
Reference (Reserve-Resource): Pay Dirt. Casa Grande Copper Project On 'Back Shelf'. No. 522, Dec. 1982, P. 7.
Reference (Reserve-Resource): Greeley, 1978, P. 83
Reference (Other Database): Cimri
Reference (Deposit): Sawyer, M.B., Gurmendi, A.C., Daley, M.R., And Howell, S.B., 1992, Principal Deposits Of Strategic And Critical Minerals In Arizona: U.S. Bureau Of Mines Special Publication, 334 P.
Reference (Deposit): Ullmer, 1978, Jour Geochem Expl, V.9, No. 2-3, P. 235-236.
Reference (Deposit): Greeley, 1978, Admr Spec Rept No. 2, P. 83-87.
Reference (Geology): Cook S S and Porter T M, 2005 - The Geologic History of Oxidation and Supergene Enrichment in the Porphyry Copper Deposits of Southwestern North America, in Porter T M, (Ed), Super Porphyry Copper and Gold Deposits: A Global Perspective, v1 pp 207-242
Reference (Geology): The Porter GeoConsultancy webpage for Santa Cruz contains a description of the geology. Accessed on 9/29/2010. http://www.portergeo.com.au/
URL: http://www.portergeo.com.au
Arizona Gold
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.
