Chilito Mine

The Chilito Mine is a copper and silica mine located in Gila county, Arizona at an elevation of 3,799 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

Name: Chilito Mine  

State:  Arizona

County:  Gila

Elevation: 3,799 Feet (1,158 Meters)

Commodity: Copper, Silica

Lat, Long: 33.06611, -110.79722

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Chilito Mine

Chilito Mine MRDS details

Site Name

Primary: Chilito Mine
Secondary: Chillito
Secondary: Velasco Pit ?
Secondary: Schneider Group


Commodity

Primary: Copper
Primary: Silica
Secondary: Gold
Secondary: Silver
Secondary: Molybdenum


Location

State: Arizona
County: Gila
District: Banner District


Land Status

Land ownership: National Forest
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: Surface/Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Deposit
Operation Category: Past Producer
Deposit Type: Porphyry Cu, skarn-related
Operation Type: Surface-Underground
Year Last Production: 1962
Discovery Year: 1885
Years of Production:
Organization:
Significant: Y
Deposit Size: S


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland


Mineral Deposit Model

Model Name: Porphyry Cu, skarn-related


Orebody

Form: Tabular


Structure

Type: L
Structure: Horst Block Between Nnw Keystone Fault And O'Carroll Fault To East
Description: Horst Block Between Nnw Keystone Fault And O'Carroll Fault To East


Alterations

Alteration Type: L
Alteration: Epidote-Chlorite-Clay-Magnetite In Diabase
Alteration Text: Epidote-Chlorite-Clay-Magnetite In Diabase; Quartz-Sericite In Other Rocks; Also Biotite & Carbonate Minerals


Rocks

Name: Granodiorite
Role: Host
Description: multi-phase-composite granodiorite porphyry stock and dikes
Age Type: Host Rock Unit
Age in Years: 62.000000+-
Age Young: Paleocene

Name: Quartzite
Role: Host
Description: tan to grey, fine grained, feldspathic quartzite-medium to thick bedded, about 75 ft thick
Age Type: Host Rock Unit
Age Young: Mesoproterozoic

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Name: Rhyodacite
Role: Associated
Age Type: Associated Rock
Age in Years: 63.000000+-
Age Young: Tertiary


Analytical Data

Analytical Data: 0.01-0.03% MO, 0.1-0.8% CU


Materials

Ore: Molybdenite
Ore: Pyrite
Ore: Chalcopyrite
Ore: Quartzite
Ore: Chalcocite
Gangue: Anhydrite


Comments

Comment (Development): OPERATORS INCLUDED GORDON WAINWRIGHT, CHILLITO, MURRAY, GILA CANYON CONSOLIDATED, GEORGE B. CHITTENDEN; GROUP CONSISTS OF 20 CLAIMS

Comment (Deposit): Discovery Year: 1880'S SULFIDE ORE FOUND IN DISCONTINUOUS REPLACEMENT BODIES. DIORITE STOCK IS 3800 FT BY 1000 FT. USED AS SILICA FLUX FOR SMELTER AT HAYDEN OPEN PIT (1975), 1800 FT LONG TUNNEL.

Comment (Identification): *****SEE related deposit- Christmas, Deposit ID 10234135


References

Reference (Reserve-Resource): Long, K.R., 1995, Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 35-68.

Reference (Geology): Eastlick, J.T., 1968, Geology of the Christmas mine and vicinity, Banner mining district, Arizona, in Ridge, J.D., ed., Ore Deposits of the United States, 1933?1967: American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc., p. 1191?1210.

Reference (Geology): The Portergeo webpage for the Christmas deposit contains a detailed description of the geology. 7/26/2010 http://www.portergeo.com.au/index.asp
URL: http://www.portergeo.com.au/

Reference (Deposit): ROSS, 1925, USGS BULL 771

Reference (Deposit): KEITH, S.B., 1975, UNPUB. MAPPING

Reference (Geology): Koski R A, Cook D S 1982 - Geology of the Christmas Porphyry Copper deposit, Gila County, Arizona: in Titley S R 1983 Advances in Geology of the Porphyry Copper Deposits, Southwestern North America University of Arizona Press, Tucson pp 353-374

Reference (Other Database): CIMRI

Reference (Production): ROSS, 1925

Reference (Deposit): PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERAL CARD FILES.

Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

Reference (Deposit): BANKS & KRIEGER, 1977, USGS MAP GQ-1391

Reference (Deposit): ADMR FILE DATA


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