Crescent Deposit

The Crescent Deposit is a manganese mine located in Pinal county, Arizona at an elevation of 2,300 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: Crescent Deposit
Secondary: Tarr and Harper Mine
Secondary: Orson Branch Property
Secondary: Putnam Wash Deposit
Secondary: San Pedro Deposit

Commodity

Primary: Manganese

Location

State: Arizona
County: Pinal
District: Crescent District

Land Status

Land ownership: Private
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: State Of Arizona
Home Office: Arizona

Owner Name: Grant Godfrey (Lessee), And M.N. West (Sublessee)

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1917
Discovery Year: 1916
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Description: Block Faulting Trending Nnw. ; Reg.Trends: Minor Pre-Cretaceous E And Ne Trending Folds And Major Post-Cretaceous Nnw Trending Faults.

Type: L
Description: Small Thrust Fault Bringing Limestone Over Quartzite

Alterations

Not available

Rocks

Name: Quartzite
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: ANALYSIS OF GRAB SAMPLE OF ORE SHOWED: 11.5 PCT. MN, 4.9 PCT. FE, 0.01 PCT. PB, 0.02 PCT. ZN, 0.05 PCT. CU.

Materials

Ore: Pyrolusite
Ore: Manganite
Ore: Psilomelane
Ore: Wad
Gangue: Calcite
Gangue: Quartz

Comments

Comment (Commodity): CONCENTRATION OF ORE BY GRAVITY METHODS ALONE IS IMPRACTICABLE BECAUSE OF INTERLOCKING NATURE OF MANGANESE AND GANGUE. GRAVITY CONCENTRATION COMPLEMENTED BY FLOTATION GIVES CONCENTRATE MEETING METALLURGICAL-GRADE SPECIFICATIONS BUT MN RECOVERY IS LOW. LEACHING WITH SULFUR DIOXIDE YIELDS GOOD MN RECOVERY.

Comment (Location): INFO FROM LAND.ST :(1964)

Comment (Reserve-Resource): WILSON AND BUTLER, 1930

Comment (Production): ITEM 1: 407 TONS WERE 40 PCT. MN, 2825 TONS WERE 19.8 PCT. MN. IN ADDITION, SEVERAL HUNDRED TONS OF LESS THAN 15 PCT. ORE AND 5 CARLOADS WERE SHIPPED.

Comment (Development): GROUP OF 5 CLAIMS ; ECON.COM: ACCESS BY ROAD ON HIGHWAY 77 AND PUTNAM WASH ROAD.

Comment (Deposit): DEPOSITS PINCH AND SWELL ALONG STRIKE.

Comment (Workings): 80 FT. VERTICAL SHAFT, 50 FT. INCLINED SHAFT, 3 ADITS, ONE STOPE 3 TO 6 FT. WIDE AND 450 FT. LONG. ONE OPENCUT 45 BY 65 FT.

Comment (Geology): GEOL.DESC: MOST IMPORTANT MN DEPOSITS ARE ALONG FRACTURE ZONE IN MESCAL LIMESTONE AND QUARTZITE. SOME MN FOUND IN FANGLOMERATES WHICH OVERLIE OLDER SEDIMENTARY ROCKS. MOST MINERALIZED ZONES FOLLOW BEDDING PLANES, WHICH STRIKE N 20 TO 45 W DIP 25 TO 45 NE.

References

Reference (Deposit): FARNHAM, L. L., STEWART, L.A., DELONG, C. W., 1961, U.S. BUREAU MINES I.C. 7990

Reference (Deposit): JONES, E.L., JR., AND RANSOME, F.L., 1920, U.S. GEOLOGICAL SURVEY BULL. 710

Reference (Deposit): KRIEGER, M.H., 1968, GEOLOGIC MAP OF LOOKOUT MOUNTAIN QUADRANGLE PINAL COUNTY, ARIZONA: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-670.

Reference (Deposit): WILSON, E.D., AND BUTLER, G.M., 1930, MANGANESE ORE DEPOSITS IN ARIZONA, ARIZ BUR MINES, BULL 127, P. 87-89.

Reference (Deposit): 1968 GEOLMAP KRIEGER, M.H., GEOLOGIC MAP GQ-67

Reference (Production): FARNHAM, L. L., ET. AL. 1961

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.