Humboldt Mine

Producer in Santa Cruz county in Arizona, United States with commodities Lead, Copper, Silver, Zinc, Gold, Manganese

Geologic information

Identification information

Deposit ID 10048342
MRDS ID M899929
Record type Site
Current site name Humboldt Mine
Related records 10161920

Geographic coordinates

Geographic coordinates: -110.734, 31.46931 (WGS84)
Elevation 1494
Relative position 1.5 MILES WEST OF HARSHAW
(click for info)

Geographic areas

Country State County
United States Arizona Santa Cruz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 023S 016E 5 CENTER OF N Arizona

Comments on the location information

  • NEAR THE HEAD OF ALUM GULCH, ABOUT 1.0 MILE SOUTH OF WORLD'S FAIR MINE ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Lead Primary
Copper Secondary
Silver Secondary
Zinc Secondary
Gold Secondary
Manganese Tertiary

Comments on the commodity information

  • LEAD, SILVER, AND COPPER ORES ARE SULFIDE IN LOWER MINE WORKINGS; RHODOCHROSITE OCCURS WITH CHALCOPYRITE AT DEPTH

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Pyrite Ore
Rhodochrosite Ore
Sphalerite Ore
Tetrahedrite Ore
Alunite Gangue
Biotite Gangue
Kaolinite Gangue
Limonite Gangue
Sericite Gangue

Alteration

  • (Local) Extensive Surface Oxidation; Strong Pyritization Of Host Rock.

Analytical data

Result ASSAY VALUES AVERAGED 7% PB, 19 OZ./TON AG, 1.5 % ZN, 1% CU, MINOR AU

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Trachyandesite
    Rock unit name Josephine Canyon Diorite
    Rock description Josephine Canyon Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -110.734, 31.46931

Geologic structures

Type Description Terms
Regional Thick-Bedded Coarse Tuffs And Massive Tuff Breccias Associated With The Trench Camp
Local Located On Or Near Contact Between Rhyolite Porphyry And Diorite; Contact Dips 85s

Ore body information

  • General form TABULAR
    Width 2.74M
  • General form TABULAR
  • General form TABULAR

Controls for ore emplacement

  • Fault Zone Parallel To Contact Between Rhyolite And Diorite; Deposits Occur Mainly In Rhyolite, 15-30 Ft From Contact

Comments on the geologic information

  • TUNNEL WORKINGS ARE ON A SLIP IN RHYOLITE THAT RUNS PARALLEL TO RHYOLITE-DIORITE CONTACT AND DIPS 83NW; SULFIDE ORES ALSO OCCUR AT SURFACE

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1855
Discoverer William Harrington And James Gillespie
Discovery method Ore-Mineral In Place
Year of first production 1887
Year of last production 1952

Mining district

District name Harshaw District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Carl Scheler, Patrick Roscoe, Gib And Reuben Mock ?)
    First year 1936

Workings at the site

  • Type of workings Underground
    Length 213.36M

Comments on the workings information

  • DEVELOPMENTS INCLUDED 160 FT SHAFAT INCLINED 80S; 2 TUNNELS ABOUT 1/4 MI TO SW OF SHAFT; 55 FT TUNNEL ABOUT 200 FT TO SW OF OTHER TUNNELS; SEVERAL STOPES

Comments on development

  • OWNERS AND OPERATORS INCLUDED PHELPS DODGE CORP. (1912-?), HUMBOLDT MINING AND REDUCTION CO, C.W. CHAPMAN (1949), G.F. GERRARD (1948); PROPERTIES CONSIST OF THE HUMBOLDT, GOOD LUCK, SILVER LEAF, AND INDIAN CHIEF CLAIMS

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M899929

Bibliographic references

  • Deposit

    ABGMT-USBM FILE DATA

  • Deposit

    KEITH, STANTON B., 1975, INDEX OF MINING PROPERTIES IN SANTA CRUZ COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLETIN 191, P. 58.

  • Deposit

    ABGMT FILES, STSANTON B. KEITH

  • Deposit

    KARTCHNER, WAYNE E., 1944, THE GEOLOGY AND ORE DEPOSITS OF A PORTION OF THE HARSHAW DISTRICT, PATAGONIA MOUNTAINS, ARIZONA; PHD THESIS, UNIVERSITY OF ARIZONA, P. 92-94

  • Deposit

    SHRADER, FRANK C., 1915, MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTAINS, ARIZONA. USGS BULLETIN 582, P. 251-252

  • Deposit

    SIMONS FRANKS., 1972, MESOZOIC STRATIGRAPHY OF THE PATAGONIA MOUNTAINS AND ADJOINING AREAS, SANTA CRUZ COUNTY, ARIZONA; USGS PROFESSIONAL PAPER 658-E, P.21-22

  • Deposit

    SIMONS, FRANKS, 1974 GEOLOGIC MAP AN SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1=48000)

  • Deposit

    MOORES, RICHARD C., 1972, THE GEOLOGY AND ORE DEPOSITS OF A PORTION OF THE HARSHAW DISTRICT, SANTA CRUZ COUNTY, ARIZONA; M.S. THESIS, UNIVERSITY OF ARIZONA

  • Deposit

    ABGMT CLIPPINGS FILE, HUMBOLDT MINING AND REDUCTION CO.

General comments

Subject category Comment text
Deposit LENSING QUARTZ VEINS ARE NARROW AND SMALL; FAULT EXPOSED IN TUNNEL WORKINGS STRIKES N50E AND DIPS 87SE; SOME DISSEMINATED CHALCOPYRITE IN WALL ROCK; ONE OF SEVERAL SILICEOUS ZONES BEARING ORES IS 9 FT WIDE AND DIPS 70NE; SHEAR ZONES TEND TO DIP AT HIGH ANGLES (70-80 DEG)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology