Critic Mine

The Critic Mine is a copper and gold mine located in La Paz county, Arizona at an elevation of 2,500 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: Critic Mine
Secondary: Cunningham Pass

Commodity

Primary: Copper
Primary: Gold
Secondary: Silver
Tertiary: Barium-Barite
Tertiary: Iron

Location

State: Arizona
County: La Paz
District: Cunningham Pass District

Land Status

Not available

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Rocacco Resources Inc.
Home Office: Vancouver, B.C.
Years: 1986 -

Production

Year: 1929
Time Period: 1909-1929
Material type: AU
Description: Cp_Grade: ^10% Cu, 0.6 Oz Au/Ton, 0.2 Oz Ag/Ton

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1865
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: L
Description: The Width Of The Vein Varies From A Few Inches Up To 3 Or 4 Feet And The Ore-Bearing Streak Is Likewise As Inconstant In Its Dimensions, Changing Abruptly In Places From A Barren Vein Into Several Inches Of Ore And Again Pinching Out As Suddenly. This Is Probably Due To Post-Mineral Longitudinal Faulting, Both Horizontal And Vertical, Which Is Very Much In Evidence In The Property, With The Result That The Deposits Are Pinched In Several Places

Alterations

Not available

Rocks

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

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

Analytical Data

Not available

Materials

Ore: Chalcocite
Ore: Magnetite
Ore: Malachite
Ore: Cuprite
Ore: Chrysocolla
Ore: Chalcopyrite
Gangue: Hematite
Gangue: Barite
Gangue: Specularite

Comments

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

Comment (Production): THE MAJOR PRODUCER OF THE DISTRICT

Comment (Development): LOCATED IN 1860'S AND PATENTED IN 1907; MINED ALMOST CONTINUOUSLY FROM 1907 THROUGH 1953. ROCACCO RESOURCES PERFORMED DUMP SAMPLING AND ADDITIONAL EXPLORATION DURING PERIOD 1984-1986.

Comment (Deposit): BARITE AS A GANGUE MINERAL WITH COPPER, GOLD AND SILVER MINERALIZATION IN SPOTTY POCKETS AND IRREGULAR LENSES IN A FISSURE VEIN.

Comment (Workings): PROPERTY IS DEVELOPED BY TWO MAIN SHAFTS AND NUMEROUS SHALLOW SHAFTS.

Comment (Deposit): Discovery Year: 1860'S

References

Reference (Deposit): BANCROFT, HOWLAND, 1911, ORE DEPOSITS IN NORTHERN YUMA COUNTY, ARIZONA: U.S.G.S. BULLETIN 451, P. 115.

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

Reference (Other Database): CIMRI

Reference (Production): A.B.M. BULLETIN 140, P. 104. (10) KEITH, S.B., 1978.

Reference (Deposit): ELSING, M.J., HEINEMANN, R.E.S., 1936, ARIZONA METAL PRODUCTION: ARIZ. BUREAU OF MINES BULLETIN 140, P. 104.

Reference (Deposit): KEITH, S.B., 1978, INDEX OF MINING PROPERTIES IN YUMA COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLETIN 192, P. 144

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

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.