Aguinaldo Mine Group

The Aguinaldo Mine Group is a manganese, lead, and silver mine located in Pima county, Arizona at an elevation of 3,796 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

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.

Site Name

Primary: Aguinaldo Mine Group
Secondary: Hump
Secondary: Purcell
Secondary: Black Beauty

Commodity

Primary: Manganese
Primary: Lead
Primary: Silver
Secondary: Copper
Secondary: Gold
Tertiary: Molybdenum

Location

State: Arizona
County: Pima
District: Papago District

Land Status

Land ownership: BLM Administrative Area
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

Owner Name: Marvin Combs
Years: 1969 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: 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

Not available

Structure

Type: L
Description: Fractured, Faulted Nnw Slivers Of Paleozoios; Thrust Faults

Alterations

Alteration Type: L
Alteration Text: Oxidized Fe & Mn Carrying Ag & Pb; Fractured And Silicified Limest One

Rocks

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

Analytical Data

Analytical Data: HIGH GRADE ORE CONTAINED 19-29% M & 16-21% FE SOME ORE REPORTED ASSAYED UP TO 300 OZ/T AG
Analytical Data: SAMPLES FROM LARGER DEPOSITS AVERAGED 10% MN & 10% FE

Materials

Ore: Malachite
Ore: Pyrite
Ore: Galena
Ore: Molybdenite
Ore: Pyrolusite
Ore: Chalcopyrite
Gangue: Tremolite
Gangue: Limonite

Comments

Comment (Production): ORIGINALLY WORKED FOR SILVER PRIOR TO 1900 WITH MINOR SPORADIC, SU BSEQUENT PRODUCTION PRIOR TO 1900, 1920-1940, 1942, AND 1969. SOME COP PER AND HAND PICKED WULFENITE

Comment (Deposit): THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050526 WITH RE CORD M050526 OF JAN WILT IN MOLYBDENUM FILE; CONTACT PERSON T.G. THEOD ORE, USGS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Development): 22 CONTIGUOUS UNPATENTED CLAIMS

Comment (Deposit): ORE BODIES DIP FROM 45-80E, CONFORMABLE WITH THE LIMESTONE. 3 OF THE LARGEST MN OCCURRENCES ARE IRREGULAR PODLIKE MASSES FROM 2-15 FT W IDE AND 10-50 FT LONG. THEY ARE SEPARATED BY 100-400 FT OF BARREN OR S PARSELY MINERALIZED LIMESTONE.

Comment (Workings): ADITS, SHAFTS, AND OPEN CUTS; 200 FT SHAFT

Comment (Geology): NEARBY ARE BISBEE GROUP, CONTINENTAL GRANODIORITE, AND PINAL SCHIS T

References

Reference (Deposit): FARNHAM, STEWART, & DELONG, 1961, USBM IC 7990, P. 119-120

Reference (Deposit): KEITH, 1974, ABM BULL 189, P. 131

Reference (Production): KEITH, 1974, P. 131; USBM IC 7990

Reference (Reserve-Resource): USBM IC 7990

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.