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Moss Mine

Past Producer in Mohave county in Arizona, United States with commodities Gold, Silver, Fluorine-Fluorite, Copper
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Geologic information

Identification information

Deposit ID 10027926
MRDS ID M004525
Record type Site
Current site name Moss Mine
Related records 10283880

Geographic coordinates

Geographic coordinates: -114.44748, 35.09974 (WGS84)
Elevation 658
Relative position 6 MILES NW OF OATMAN.
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Geographic areas

Country State County
United States Arizona Mohave

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 020N 020W 19 Arizona

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Fluorine-Fluorite Tertiary
Copper Tertiary

Comments on the commodity information

  • DISTRICT ALSO HAS SMALL AMOUNT OF CHALCOPYRITE, CHALCOCITE, PYRITE, CHRYSOCOLLA, RED PB OXIDES, AND WULFENITE.

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Gold Ore
Marcasite Ore
Pyrite Ore
Wulfenite Ore
Calcite Gangue
Hematite Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result VEIN AT 220-FOOT LEVEL, 90 FEET WIDE, CARRIES 0.15 TO 0.2 OZ. AU/TON.

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) > Felsic Volcanic Rock > Trachyte
    Rock unit name Alcyone Trachite;Oatman Andesite;Gold Road Latite;Times Porphyry
    Rock description Alcyone Trachite;Oatman Andesite;Gold Road Latite;Times Porphyry
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -114.44748, 35.09974
ListMap

Geologic structures

Type of structure Regional
Structure description Nnw To Wnw Trending Vein And Fault System In Tert Volcanic Rocks

Ore body information

  • General form LODE
    Strike N 78 W
    Dip 70 S
    Width 30.48M
    Length 1609.3M

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both metallic and non-metallic
Deposit size Small
Significant Yes
Discovery year 1864
Discovery method Ore-Mineral In Place
Year of first production 1864
Year of last production 1909
Production years PRIOR TO 1909

Mining district

District name San Francisco District

Land status

Ownership category BLM Administrative Area

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 113,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 7.604 g/mt Gold Major 1986

Workings at the site

  • Type of workings Underground
    Length 502.92M
    Overall depth 70.1M

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M004525
U.S. Bureau of Mines Minerals Availability System MAS 0040150220

Bibliographic references

  • Deposit

    SCHRADER, F.C., 1909, MINERAL DEPOSITS OF THE CERBAT RANGE, BLACK MOUNTAINS, AND THE GRAND WASH CLIFFS, MOHAVE COUNTY, ARIZONA: U.S.G.S. BULL. 397, P. 170.

  • Deposit

    WILSON, E.D., 1934, ARIZONA LODE GOLD MINES AND GOLD MINING: ARIZONA BUREAU OF MINES BULLETIN 137, P. 94.

  • Deposit

    LAUSEN, C., 1931, GEOLOGY AND ORE DEPOSITS OF THE OATMAN AND KATHERINE DISTRICTS, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 131, P. 113.

  • Deposit

    NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.

  • Deposit

    PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

  • Deposit

    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.

  • Other Database

    CIMRI

  • Production

    U.S.G.S. BULL. 397, P. 170.

  • Reserve-Resource

    NIEMUTH, 1987.

General comments

Subject category Comment text
Deposit ONE ORE SHOOT CONTAINED FREE GOLD AND WAS EXCEPTIONALLY RICH ORE. THIS SHOOT EXTENDED DOWN FROM THE SURFACE TO A DEPTH OF 65 FEET. OTHER SMALLER ORE BODIES WERE FOUND FROM NEAR THE SURFACE TO DEPTHS OF 220 FEET AT VARIOUS PLACES ALONG THE VEIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-NOV-1992 Orris, Greta J. U.S. Geological Survey