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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Rex Mine

Past Producer in Elko county in Nevada, United States with commodities Gold, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10045548
MRDS ID M233315
Record type Site
Current site name Rex Mine

Geographic coordinates

Geographic coordinates: -116.77789, 41.24434 (WGS84)

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Midas(quadrangle 1:24,000 scale)

Tuscarora(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rock(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

Bureau of Land Management NV BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 039N 046E 31 Nevada

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Argentite Ore

Alteration

  • (Local) Silicification

Analytical data

Result SEE CARPER (1920) N. B. OF M. DISTRICT FILES ALSO SEE SIRDEVAN (1913) N. B. OF M. MINING DISTRICT FILES.

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -116.77789, 41.24434
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault Along Rhyolite-Andesite Contact

Ore body information

  • General form TABULAR
    Strike N15W
    Dip 66W

Controls for ore emplacement

  • Fault Zone

Comments on the geologic information

  • THE ORE LODE IS A VEIN ALONG THE FAULT CONTACT BETW/ RHYOLITE AND OVERLYING ANDESITE. THE VEIN IS A ZONE OF CRUSHED SILICIFIED FE-STAINED RHYOLITE FROM 5 TO 15 FT. WIDE. THE FOOTWALL IS THE FAULT SLICKENSLIDE. A CROSS VEIN IN THE RHYOLITE HAS BEEN DEVELOPED FOR A SHORT DISTANCE. MOST OF THE ORE IS OXIDIZED, BUT SULPHIDES (GOLD ASSOC. W/PYRITE) ARE PRESENT AT THE BOTTOM OF THE MINE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1910
Year of first production 1910

Mining district

District name Gold Circle

Comments on the workings information

  • 2 SHAFTS, NUMBEROUS DRIFTS, ADITS AND SMALL OPEN PITS

Reference information

Bibliographic references

  • Deposit

    GRANGER A. E. ETAL (1957) MINERAL RESOURCES OF ELKO CO. NEV., NEV. BUR. OF MINES BULL 54

  • Deposit

    CARPER A. F. (1920) REPORT ON REX MINE & COLORADO GRANDE GROUP, N. B. OF M. MINING DISTRICT FILES

  • Deposit

    SIRDEVAN W. H. (1913) REPORT ON THE RES MINE, NEV. BUR. OF MINES, MINING DISTRICT FILES

  • Deposit

    EMMONS W.H.(1910) RECONNAISSANCE OF ELKO, LANDER, & EUREKA COS. NEV., USGS BULL 408

General comments

Subject category Comment text
Deposit VEIN, FAULT ZONE BEARING AURIFEROUS PYRITE & ARGENTITE
Deposit DEVELOPEMENT CONSISTS OF TWO SHAFTS, NUMBEROUS DRIFTS, ADITS, AND SMALL OPEN PITS. SIRDEVAN IN HIS 1913 REPORT HAS BOTH A MINE MAP AND A PROPERTY MAP. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 Kirkham, Richard A. Nevada Bureau of Mines and Geology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.