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Black Diamond Prospect

Past Producer in Humboldt county in Nevada, United States with commodity Manganese
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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. Land status
  18. Ownership information
  19. Production statistics
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10045119
MRDS ID M232786
Record type Site
Current site name Black Diamond Prospect
Alternate or previous names Charleston Hills Mining Co.

Geographic coordinates

Geographic coordinates: -117.55124, 40.68907 (WGS84)
Elevation 1768
Relative position APPROXIMATELY 19 MILES SOUTH OF GOLCONDA.

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sheep Ranch Canyon(quadrangle 1:24,000 scale)

Winnemucca(quadrangle 1:100,000 scale)

Winnemucca(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N 039E 35 SE OF NE Nevada

Comments on the location information

  • A HALF MILE NORTH OF BLACK DIABLO MINE AND ABOUT A QUARTER MILE SOUTH OF O'LEARY PROSPECT. LOCATED ON EAST SIDE OF SONOMA RANGE AND MARKED ON MAP AS 'OPEN PIT.' ACCESS BEST VIA PUMPERNICKEL VALLEY (1984). . INFO FROM LAND.ST :(1972); 1:24000 QUADRANGLE MAP IS A 1990 EDITION

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Braunite Ore
Hematite Ore
Manganite Ore
Psilomelane Ore
Pyrolusite Ore
Bementite Gangue
Chalcedony Gangue
Jasper Gangue
Rhodonite Gangue

Alteration

  • (Local) Silicification

Analytical data

Result USBM ORE ANALYSIS : 22.9 % MN, 2.1 % FE, 55.8 % SI02, 63.4 % INSOL, 0.039 % P, 1.9 % AL203, NO ZN, 1.06 % BA, 0.1 % CA.

Mineral occurrence model information

Model code 97
USGS model code 24c
Deposit model name Volcanogenic Mn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Pumpernickel Formation;;;
    Rock description Pumpernickel Formation;;;

Nearby scientific data

(1) -117.55124, 40.68907
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Folding

Ore body information

  • General form LENS, BLANKET
    Strike N-S}N-S}N-S
    Dip 10-20 W}10-20 W}10-20 W
    Length 304.8M
    Width 6.1M
    Depth to top 0M
  • General form LENS, BLANKET
    Strike N-S}N-S}N-S
    Dip 10-20 W}10-20 W}10-20 W
    Length 12.19M
    Width 1.22M
    Depth to top 0M
  • General form LENS, BLANKET
    Strike N-S}N-S}N-S
    Dip 10-20 W}10-20 W}10-20 W
    Length 12.19M
    Width 1.22M

Controls for ore emplacement

  • Sedimentary Beds

Comments on the geologic information

  • THE ORE IS IN THE FORM OF AN ALTERED SEDIMENTARY LENS OUTCROPPING IN THREE PLACES IN SEDIMENTARY BEDS AT TOP OF A W-DIPPING QUARTZITE-CALCAREOUS SHALE SERIES LYING EAST OF THE CROPPING AND IN CONTACT ON THE WEST WITH A DIKE OF GRANODIORITE PORPHYRY WHICH EXHIBITS NO CONTACT METAMORPHISM. THE UPPER PART OF THE SEDIMENTARY SERIES CONSISTS MAINLY OF CHERT OR SILICIFIED CALCAREOUS SHALES WITH JASPER PROMINENT IN THE LOWER PART OF THIS SECTION. THE ORE HORIZON IS IN THE CHERT AND JASPER. IT IS COMPOSED OF FINELY DIVIDED SILICA AND MANGANESE OXIDES IN A MORE OR LESS DEFINITE BED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1947

Mining district

District name Harmony District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Black Diamond Mining Co.
    First year 1947
  • Type Owner
    Owner Charleston Hill National Mines Co., Mrs. Mary L. Clough, President,Winnemucca, Nv
    First year 1959

Production statistics

  • Year 1947
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^Average 28 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 28wt-pct

Comments on the workings information

  • SMALL OPEN PIT

Reference information

Bibliographic references

  • Deposit

    FERGUSON, H.G., MULLER S.W., AND ROBERTS, R.J., 1951, GEOLOGY OF WINNEMUCCA QUADRANGLE, PERSHING D HUMBOLDT COUNTIES, NEVADA: USGS MAP GQ-11.

  • Deposit

    STAFF, 1983, UNPUBLISHED USBM CRIB DATA: NBMG UNPUBLISHED (TINGLEY) FILES.

  • Deposit

    SHIBLER, B.K., AND WELLS R.R., 1951, CONNTRATION OF OXIDE AND SILICATE MANGANESE ORES FROM THE VICINITY OF GOLCONDA NEVADA: USBM REPORT ON INVESTIGATION 4754.

  • Deposit

    TRENGROVE, R.R., 1959, RECONNAISSANCE OF NEVADA MANGANESE DEPOSITS: USBM REPORT ON INVESTIGATION 5446.

  • Deposit

    PARDEE, J.T., AND NES, E.L., 1920, CONTRIBUTIONS TO ECONOMIC GEOLOGY: USGS BULL. 710-F, P. 239-240.

  • Production

    TRENGROVE (1959), P16.

General comments

Subject category Comment text
Deposit ORE OCCURS AS MASSIVE, TOUGH MANGANESE OXIDES THAT REPLACE SEDIMENTARY ROCK. INTERBEDDED WITH THE ORE ARE THIN BEDS OF SILICIFIED SHALE AND LENSES OF JASPER RICH IN HEMATITE. SECOND OUTCROP IS 400 FEET NORTH OF FIRST AND THIRD IS 600 FEET SOUTH OF CENTRAL OUTCROP.
Deposit THIS RECORD HAS BEEN MERGED WITH M242601, WHICH HAS BEEN DELETED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1981 La Pointe, D. D. Nevada Bureau of Mines and Geology
Updater 01-SEP-1985 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-APR-1993 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
Updater 01-NOV-1993 Humphries, S. E. (Marcus, S.) U.S. Geological Survey
Updater 01-SEP-1994 Li, Zhiping (Moyer, Lorre A.) U.S. Geological Survey

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.