| Deposit ID | 10103551 |
|---|---|
| MRDS ID | M030387 |
| Record type | Site |
| Current site name | Hardshell Mine |
| Alternate or previous names | Eagle-Pitcher Properties, Manto |
| Related records | 10210798 |
| Geographic coordinates: | -110.71706, 31.45958 (WGS84) |
|---|---|
| Elevation | 1562 |
| Relative position | 1 MI SW OF HARSHAW. |
Political divisions (FIPS codes)
Santa Cruz(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Harshaw(quadrangle 1:24,000 scale)
Nogales(quadrangle 1:100,000 scale)
Nogales(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Santa Cruz(hydrologic unit)
Santa Cruz(hydrologic accounting unit)
Middle Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
Federal lands
Coronado National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Arizona | Santa Cruz |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 023S | 016E | 04 | CENTER | Arizona |
| Commodity | Importance |
|---|---|
| Manganese Critical | Primary |
| Silver | Primary |
| Lead | Primary |
| Gold | Primary |
| Copper | Primary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Anglesite | Ore |
| Braunite | Ore |
| Cerargyrite | Ore |
| Gold | Ore |
| Hemimorphite | Ore |
| Hydrozincite | Ore |
| Manganite | Ore |
| Mimetite | Ore |
| Psilomelane | Ore |
| Pyrolusite | Ore |
| Pyromorphite | Ore |
| Smithsonite | Ore |
| Wulfenite | Ore |
| Clay | Gangue |
| Limonite | Gangue |
| Quartz | Gangue |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale | ||
| |||
| Host or associated | Associated |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate |
| Host or associated | Associated |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate) |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite |
| (1) | -110.71706, 31.45958 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Corral Canyon Fault Block, Downthrow To Sw. Located On N-S Trending American Fault |
| Type of structure | Local |
| Structure description | Fault Gouge And Silicified Fault Breccia In A Strong Fault Zone; Bedding Plane Fault In Conglomerate |
| General form | IRREGULAR, LENSES |
|---|---|
| Strike | E |
| Dip | 35N |
| Thickness | 18M |
| Length | 460M |
| Width | 275M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | Yes |
| Discovery year | 1879 |
| Discoverer | David Harshaw & Jose Andrade |
| Year of first production | 1896 |
| Year of last production | 1964 |
| District name | Harshaw District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Asarco (American Smelting And Refining Co.) |
| First year | 1987 |
| Year | 1964 | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1896-1964 | ||||||||||||||||||||||||||||
| Material | ORE | ||||||||||||||||||||||||||||
| Accuracy | Estimate | ||||||||||||||||||||||||||||
| Description | Cp_Grade: ^6%Pb, 8 Oz/Tag, 0.5% Cu, Minor Zn, Au | ||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1986 | ||||||||||||||
| Total resources | 2721000mt ore | ||||||||||||||
| |||||||||||||||
| Type | In-situ | |||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1972 | |||||||||||||||||||||||||||||||||||
| Total resources | 2947000mt ore | |||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||||||
| Type of workings | Surface/Underground |
|---|---|
| Area | 2.53HA |
| Length | 914.4M |
| Overall depth | 137.16M |
| Overall length | 73.15M |
| Overall width | 36.58M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M030387 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0040230003 |
KEITH, 1975, ABM BULL 191.
SCHRADER, 1915, USGS BULL 582.
ELSING & HEINEMAN, 1936, ABM BULL 140.
VON FAY, 1965, ASARCO REPORT.
ADMR FILE DATA, HARDSHELL MINE, TRENCH MILL.
ABGMT CLIPPINGS FILE; HARDSHELL MINE, EAGLE PITCHER LEAD CO.
ABGMT FILE DATA, STANTON B. KEITH.
ABGMT-USBM FILE DATA.
USBM FILES, HARDSHELL MINE.
NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.
SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: U.S. BUREAU OF MINES SPECIAL PUBLICATION, 334 P.
CIMRI
KEITH, 1975; ELSING & HEINEMAN, 1936.
NIEMUTH, 1987.
| Subject category | Comment text |
|---|---|
| Deposit | ORE OCCURS AS REPLACEMENT IN FAULT GOUGE, SILICIFIED BRECCIA, AND RHYOLITE. |
| Deposit | THIS REPORT WAS TAKEN FROM RECORD M030387 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-83 | Peterson, Jocelyn A. | U.S. Geological Survey | |
| Updater | 01-FEB-93 | Orris, Greta J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:
Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.