Black Rock Mine

The Black Rock Mine is a lead, silver, and zinc mine located in La Paz county, Arizona at an elevation of 751 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

Name: Black Rock Mine

State:  Arizona

County:  La Paz

Elevation: 751 Feet (229 Meters)

Commodity: Lead, Silver, Zinc

Lat, Long: 33.09083, -114.59361

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.


Satelite image of the Black Rock Mine

Black Rock Mine MRDS details

Site Name

Primary: Black Rock Mine
Secondary: Pacific Mines


Commodity

Primary: Lead
Primary: Silver
Primary: Zinc
Tertiary: Fluorine-Fluorite
Tertiary: Manganese
Tertiary: Molybdenum


Location

State: Arizona
County: La Paz
District: Silver District


Land Status

Not available


Holdings

Not available


Workings

Type: Surface/Underground


Ownership

Owner Name: Black Rock Mining And Reduction Co.


Production

Year: 1941
Description: Ap_Grade: ^5.3% Pb, 1.7 Oz Ag/Ton


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
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: VUGS & IRREGULAR MASSES


Structure

Type: L
Description: Complex Faulting And Fracturing Have Affected The Schist. Black Rock Follows A Fault Zone


Alterations

Alteration Type: L
Alteration Text: Schist Is Silicified, Chloritized, & Carbonatized For 50 Ft From Vein


Rocks

Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene


Analytical Data

Analytical Data: 6.7 OZS OF AG/TON
Analytical Data: 9.8% ZN
Analytical Data: 4.87% PB


Materials

Ore: Anglesite
Ore: Smithsonite
Ore: Limonite
Ore: Wulfenite
Ore: Pyrolusite
Ore: Galena
Gangue: Fluorite
Gangue: Calcite
Gangue: Quartz


Comments

Comment (Location): INFO FROM LAND.ST :01, 49?

Comment (Production): PRODUCTION UNDER RED ROCK-BLACK ROCK MINE. RICH PB-AG ORE PRODUCED FROM 1883-1887 BUT AMOUNT UNKNOWN. DUMP RETREATED IN 1948-1949 TOGETHER WITH OTHER DUMPS.

Comment (Development): PREVIOUS OWNERS INCLUDE PENN METALS, INC, RILEY & HOLMES; PATENTED IN 1880

Comment (Deposit): LENSING ORE SHOOTS.

Comment (Workings): SHAFT, ADIT, PIT.


References

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

Reference (Other Database): CIMRI

Reference (Production): KEITH, S.B., 1978.

Reference (Deposit): KEITH, S.B., 1978, INDEX OF MINING PROPERTIES IN YUMA COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLETIN 192, P. 175.

Reference (Deposit): PARKER, F.Z., 1966, THE GEOLOGY AND MINERAL DEPOSITS OF THE SILVER DISTRICT, TRIGO MOUNTAINS; YUMA COUNTY, ARIZONA: MASTER THESIS SAN DIEGO STATE COLLEGE, P. 118-126.

Reference (Deposit): WILSON, E.D., 1951, ARIZONA ZINC AND LEAD DEPOSITS: ARIZ. B.M. BULLETIN 158, P. 93.

Reference (Deposit): WILSON, E.D., 1933, GEOLOGY AND MINERAL DEPOSITS OF SOUTHERN YUMA COUNTY, ARIZONA; ARIZ. B.M. BULLETIN 134, P. 67.


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