The Eclipse Group is a copper mine located in Pima county, Arizona at an elevation of 5,000 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: 5,000 Feet (1,524 Meters)
Commodity: Copper
Lat, Long: 31.85389, -110.76111
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.
Eclipse Group MRDS details
Site Name
Primary: Eclipse Group
Secondary: Eclipse
Secondary: Backbone
Secondary: Triangle
Secondary: And Olcott Claims
Commodity
Primary: Copper
Secondary: Silver
Secondary: Lead
Tertiary: Gold
Tertiary: Molybdenum
Tertiary: Zinc
Location
State: Arizona
County: Pima
District: Helvetia-Rosemont 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
Not available
Ownership
Not available
Production
Year: 1900
Time Period: 1880-1900
Material type: ORE CU
Description: Cp_Grade: ^10% Cu, Some High Grade Pb-Ag Ore
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Homoclinal ; Reg.Trends: Tilting And Broad Open Folds In S. And Extensive Faulting In N.
Type: L
Description: Thrust And Normal Faulting - Fracture Zones.
Alterations
Alteration Type: L
Alteration Text: Py-Cp Gossan; Skarn
Rocks
Name: Quartz Latite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene
Name: Quartz Latite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Name: Quartz Latite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Paleocene
Analytical Data
Not available
Materials
Ore: Molybdenite
Ore: Galena
Ore: Sphalerite
Ore: Pyrite
Ore: Chalcopyrite
Comments
Comment (Deposit): THE STRATIGRAPHIC UNITS USED ARE THOSE OF H. DREWES - 1971 USGS MAP I-613. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Location): S CENTRAL SECTION 24, N CENTRAL SECTION 25
Comment (Production): PRODUCTION WAS PRIOR TO 1900, YEARS ESTIMATED.
Comment (Development): ANACONDA REPORTS ROSEMONT-HELVETIA INTRUSIVE QUARTZ LATITE AS POTENTIAL PORPH. COPPER DEPOSIT IN 1971.
Comment (Deposit): CUPRIFEROUS QUARTZITE AND FERRUGINOUS CARBONATE, GOSSAN
Comment (Workings): SHAFT
Comment (Geology): GEOL.DESC: AGE OF MINERALIZATION BELIEVED TO BE THAT OF THE QUARTZ LATITE INTRUSIVE OF DREWES - 1971.REG.COM: STRUCTURE IN DISTRICT IS THRUST FAULTING - HIGH ANGLE NORMAL FAULTING AND FOLDING.
References
Reference (Deposit): KEITH,S.B.,1974,INDEX OF MINING PROPERTIES IN PIMA COUNTY,ARIZONA:ARIZONA BUREAU OF MINES BULLETIN 189, P.125.
Reference (Deposit): 1909 RECON F. C. SCHRADER U.S.G.S. BULL. 582
Reference (Deposit): 1971 DIREXPL ANACONDA -POSSIBLE NEW PORPH. COPPER DEPOSIT.
Reference (Deposit): 1971 GEOLMAP H. DREWES U.S.G.S. MAP I-613
Reference (Deposit): SCHRADER, F. C. 1915 USGS BULL. 582.
Reference (Deposit): ARIZONA BUREAU OF MINES 1971 FIELDNOTES V. 1 NO 2
Reference (Deposit): DREWES, H. 1971 USGS MAP I-613 (SAHUARITA QUAD)
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.
