Oro Amigo Mine

Past Producer in Clark county in Nevada, United States with commodities Copper, Gold, Silver, Platinum

Geologic information

Identification information

Deposit ID 10103628
MRDS ID M045356
Record type Site
Current site name Oro Amigo Mine
Alternate or previous names Oro Amigo Platino Mining Co.
Related records 10197148

Geographic coordinates

Geographic coordinates: -115.5514, 35.84556 (WGS84)
Elevation 1200
Relative position 7 MI WEST OF GOODSPRINGS, NEV. 1-2 MI NORTHEAST OF BOSS MINE
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Geographic areas

Country State County
United States Nevada Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 024S 057E 23 E2 Nevada

Comments on the location information

  • UNSURVEYED. 4 CLAIMS. LOCATION GIVEN IS FOR ADIT SYMBOLS SHOWN AT MINE ON TOPO MAP INFO FROM LAND.ST :49?

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Platinum Secondary

Comments on the commodity information

  • TRACES OF BLACK COBALT OXIDE

Materials information

Materials Type of material
Chrysocolla Ore
Malachite Ore
Anatase Gangue
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Dolomitized Limestone

Analytical data

Result AU=0.11 OZ/TON (3.8 PPM), PT=0.10 OZ/TON (3.4 PPM)
Result 0.51 OZ/TON AU (17 PPM), 0.11 OZ/TON PT (3.8 PPM) (UNVERIFIED ASSAY)

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Mississippian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Valentine Member Of Sultan Formation
    Rock description Valentine Member Of Sultan Formation

Nearby scientific data

(1) -115.5514, 35.84556

Geologic structures

Type of structure Local
Structure description Ironside Fault; Considerable Folding

Ore body information

  • General form DISSEMINATED IN FRACTURES

Controls for ore emplacement

  • Ore On Borders Of Lenses Of Chert. Ores Follow Faults Trending N70w, Dipping 40sw

Comments on the geologic information

  • GEOL.DESC: WORKINGS IN FRACTURE ZONES

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1905
Production years 1917

Mining district

District name Goodsprings District

Ownership information

  • Type Operator
    Owner Oro Amigo Platino Mining Co.
    First year 1915

Comments on the production information

  • ONE CAR OF COPPER ORE SHIPPED IN 1917 WEIGHED 18 TONS; ITS GRADE 17.17% CU, 12.2% FE, 0.15 OZ/TON AU, 0.5 OZ/TON AG.

Workings at the site

  • Type of workings Underground
    Length 182.88M
    Overall depth 21.34M

Comments on the workings information

  • MAP OF MINE WORKINGS IN HEWETT, 1931, P. 111.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M045356

Bibliographic references

  • Deposit

    HEWETT, D.F., 1931, GEOLOGY AND ORE DEPOSITS OF GOODSPRINGS QUADRANGLE, NEVADA: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 162, P. 111-112.

  • Deposit

    KNOPF, ADOLPH, 1915, A GOLD-PLATINUM-PALLADIUM LODE IN SOUTHERN NEVADA, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY: U.S. GEOLOGICAL SURVEY BULLETIN 620, P. 12.

  • Deposit

    LONGWELL, C.R., PAMPEYAN, E.H., BOWYER, BEN, AND ROBERTS, R.J., 1965, GEOLOGY AND MINERAL DEPOSITS OF CLARK COUNTY, NEVADA: NEVADA BUREAU OF MINES BULLETIN 62, P. 194.

  • Production

    HEWETT, 1931

General comments

Subject category Comment text
Deposit VEIN FOUND IN BRECCIA ZONE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Blair, Will N. U.S. Geological Survey
Updater 01-JUN-1991 Peterson, Jocelyn A. U.S. Geological Survey