Margarita Mine Group

The Margarita Mine Group is a gold and silver mine located in Santa Cruz county, Arizona at an elevation of 4,301 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: Margarita Mine Group
Secondary: Mcdonald
Secondary: Golden Eagle
Secondary: Rob Roy

Commodity

Primary: Gold
Primary: Silver
Secondary: Zinc
Secondary: Lead
Secondary: Copper

Location

State: Arizona
County: Santa Cruz
District: Oro Blanco 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

Owner Name: Crossland Industries Corp.
Home Office: New York
Years: 1986 -

Production

Year: 1941
Time Period: 1903-1941
Material type: ORE
Description: Cp_Grade: ^Averaged 0.3 Oz. Au Per Ton, 0.6 Oz. Ag Per Ton, And Minor Pb And Cu.

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1895
Year Last Production: 1941
Discovery Year: 1895
Discovery Method: Unknown
Years of Production:
Organization:
Significant: Y
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: TABULAR

Structure

Type: R
Description: Block Faulting

Alterations

Alteration Type: L
Alteration Text: Sericitization; Silicification; Propylitization; Qtz-Ser-Pyr

Rocks

Name: Tuff
Role: Host
Age Type: Host Rock Unit
Age Young: Late Jurassic

Name: Tuff
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic

Analytical Data

Analytical Data: RICHEST ZONE SAID TO CONTAIN 0.3 OZ AU & 0.5 OZ AG PER TON.

Materials

Ore: Silver
Ore: Galena
Ore: Sphalerite
Ore: Chalcopyrite
Gangue: Quartz
Unknown: Pyrite

Comments

Comment (Location): INFO FROM LAND.ST :(1979)

Comment (Development): PAST OPERATORS INCLUDE F. DANIELS (1936-39), MARGARITA GOLD MINES CO. (1934-35), C.G. WECHLER (1941). 1984-86: PORELIMINARY FEASIBILITY STUDY, BULK SAMPLE FOR METALLURGICAL EVALUATION.

Comment (Geology): MINE IS IN A SILICIFIED ZONE SURROUNDED BY NON-WELDED RHYOLITE TUFF OF THE COBRE RIDGE TUFF FORMATION. ; GEOL.DESC: AREAS WITH MOST ABUNDANT PSEUDOMOPHS OF LIMONITE ARE RICHEST.

Comment (Deposit): IRREGULAR SILICIFIED ZONE CONSISTS OF NUMEROUS QUARTZ VEINLETS AND STRINGERS WITH ABUNDANT LIMONITE AFTER PYRITE IN SERICITIZED TUFF. DEPOSIT IS FLAT-LYING.

Comment (Workings): NUMEROUS OPEN CUT, SHAFT, AND ADIT OPERATIONS. MOSTLY SHALLOW WORKINGS.

Comment (Commodity): SULFIDES ARE OXIDIZED.

Comment (Production): ORIGINALLY WORKED IN THE 1890'S.

Comment (Deposit): Discovery Year: 1890'S

References

Reference (Deposit): WILSON AND OTHERS, 1934, ARIZONA LODE GOLD MINES: ABM BULL 137.

Reference (Deposit): KNIGHT, L.H., JR., 1970, ORO BLANCO DISTRICT: UNIV. ARIZ. PH.D. THESIS.

Reference (Deposit): YEEND, WARREN, 1973.

Reference (Deposit): ABGMT-USBM FILE DATA.

Reference (Deposit): ABM BULL 191, P. 64.

Reference (Deposit): NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.

Reference (Deposit): SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: UNITED STATES BUREAU OF MINES SPECIAL PUBLICATION, 334 P.

Reference (Other Database): CIMRI

Reference (Production): KEITH, 1975.

Reference (Reserve-Resource): NIEMUTH, 1987; SAWYER AND OTHERS, 1992.

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.