San Antonio Mine

The San Antonio Mine is a silica mine located in Pima county, Arizona at an elevation of 1,880 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: San Antonio Mine
Secondary: Mica Mine
Secondary: Crowler Nos. 1-4
Secondary: Sunshine
Secondary: Valentina Mining Claim
Secondary: Desert White Queen

Commodity

Primary: Silica
Secondary: Feldspar
Secondary: Mica
Tertiary: Uranium

Location

State: Arizona
County: Pima
District: Ajo District

Land Status

Land ownership: Federal
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.
Administrative Organization: Cabeza Prieta Game Range

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

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

Form: IRREGULAR

Structure

Not available

Alterations

Not available

Rocks

Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Analytical Data

Analytical Data: RADIOACTIVITY 0.01% EU3O8

Materials

Gangue: Tourmaline
Unknown: Quartz
Unknown: Muscovite

Comments

Comment (Location): N CENTER SECTION 2 , E CENTER SECTION 11. CABEZA PRIETA GAME RANGE.

Comment (Production): OPERATED SINCE 1940 , FIRST FOR MICA AND FELDSPAR, NOW AS A SILICA FLUX MINE. FLAKE AND GROUND MICA USED FOR MUD AND ROOFING MATERIAL.

Comment (Geology): URANIUM MINERALS ARE COATINGS ON FRACTURES IN PEGMATITE AND GRANITE

References

Reference (Other Database): CIMRI

Reference (Deposit): KEITH, S.B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189, P. 82 .

Reference (Deposit): PRELIMINARY RECONNAISSANCE FOR URANIUM IN PIMA AND PINAL COUNTIES, ARIZONA, 1950 TO 1957 : US ATOMIC ENERGY COMMISSION RME-159 , 1970 , P. 16 .

Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS, 2ND EDITION: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

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

Reference (Production): PHILLIPS, 1987, P 130.

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.