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Jackass

Past Producer in Inyo county in California, United States with commodities Lead, Silver, Zinc, Copper
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Geologic information

Identification information

Deposit ID 10033981
MRDS ID M020640
Record type Site
Current site name Jackass
Related records 10139403

Geographic coordinates

Geographic coordinates: -117.57312, 36.28275 (WGS84)
Elevation 1524
Relative position 1 MILE N 60 E OF DARWIN
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Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019S 041E 18 California

Commodities

Commodity Importance
Lead Primary
Silver Secondary
Zinc Secondary
Copper Secondary

Materials information

Materials Type of material
Galena Ore
Pyrite Ore
Sphalerite Ore
Calcite Gangue
Limonite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Nearby scientific data

(1) -117.57312, 36.28275
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Comments on the geologic information

  • GEOL.DESC: ROCKS IN MINE AREA ARE BROWN-STAINED DENSE CALC-HORNSFELS AND BLUISH-GRAY LIMESTONE IN PART ALTERED TO TACTITE. BEDS STRIKE N 20 W, DIP 78 W.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Darwin

Comments on the production information

  • NO PRODUCTION RECORDS, 1950 : 20 TONS OF ORE WAS MINED ASSAYING 21 % PB, 17 OZ AG/TON.

Workings at the site

  • Type of workings Underground
    Overall depth 42.67M

Comments on the workings information

  • INCLINED SHAFT 140 FT. DEEP, 150 FT. OF DRIFTS. INCLINED SHAFT 35 FT. DEEP WITH SHORT DRIFT AT BOTTOM IS 600 FT. N 15 W OF MAIN SHAFT.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M020640

Bibliographic references

  • Deposit

    HALL, W. E. AND MACKEVETT, E. M., 1958 , ECONOMIC GEOLOGY OF THE DARWIN QUADRANGLE INYO COUNTY, CALIFORNIA; DIV. OF MINES, SPECIAL REPORT 51 , P. 31

General comments

Subject category Comment text
Deposit MAIN SHAFT ON BEDDING PLANE VEIN THICKNESS 1 - 4 FT. OVER LENGTH OF 80 FT. ON 66 FT. LEVEL, DRIFT DRIVEN ON VEIN 1 - 2 FT. THICK, NORTH OF SHAFT A CHIMNEY OF ORE HAS BEEN STOPED. 35 FT. SHAFT ON VEIN, STRIKES N 63 E, DIPS 77 SE, VEIN IS 3 FT. THICK ON SURFACE, THINS AT BOTTOM TO 1 FT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1978 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey