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
Elevation: 3,799 Feet (1,158 Meters)
Commodity: Copper, Silica
Lat, Long: 33.06611, -110.79722
Map: View on Google Maps
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
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.
