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Mac Boyle Blue Mine

Past Producer in Esmeralda county in Nevada, United States with commodities Talc-Soapstone, Clay
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10046858
MRDS ID M242077
Record type Site
Current site name Mac Boyle Blue Mine
Alternate or previous names White King No. 5 Claim., NBMG Sample Site 1132

Geographic coordinates

Geographic coordinates: -117.70814, 37.41939 (WGS84)
Elevation 2134
Relative position 1.9 MILES BY ROAD SOUTH OF PALMETTO SMELTER RUINS ON NEVADA HIGHWAY 3.

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sylvania Mountains(quadrangle 1:24,000 scale)

Last Chance Range(quadrangle 1:100,000 scale)

Goldfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fish Lake-Soda Spring Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(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 Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006S 038E 13 W2 OF NE Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Talc-Soapstone Primary
Clay Primary

Comments on the commodity information

  • ORE IS SHEARED, BROKEN, GREENISH-GRAY, VERY FINE GRAINED.

Materials information

Materials Type of material
Chlorite Ore
Talc Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Reed Dolomite
    Rock description Reed Dolomite

Nearby scientific data

(1) -117.70814, 37.41939
ListMap

Economic information

Ore body information

  • General form TABULAR TO IRREGULAR
    Strike N 80 E
    Dip STEEPLY N
    Length 30.48M
    Width 9.14M

Controls for ore emplacement

  • Contact Zone Of Igneous Rock With Dolomite; Thrust Contact

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1941
Discoverer Located By W.E. Mac Boyle, M.D. Mac Boyle, And J.E. King
Year of first production 1941

Mining district

District name Sylvania (Green Mountain) District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Mac Boyle, W. E. And M. D.
    First year 1950

Workings at the site

  • Type of workings Surface/Underground
    Length 45.72M

Comments on the workings information

  • TWO LEVELS, ONE AT 32 AND ONE AT 62 FEET SERVICED BY AN INCLINED SHAFT HAD OVER 150 FEET OF DRIFTS; OPEN PIT ABOUT 100 FT IN DIAMETER WITH MAXIMUM FACE HEIGHT OF 30 FEET, ENTERED BY A 50-FT CUT. THE EARLIER UNDERGROUND WORKINGS WERE DESTROYED BY THE OPEN PIT. THERE IS A 30-FT TRENCH SE OF THE PIT. ABOUT 200 FT ENE OF THE MAIN PIT, A 40 X 60 FT AREA WAS STRIPPED TO EXPLORE A CHLORITE-RICH BODY FROM WHICH A SMALL TONNAGE WAS MINED

Comments on development

  • THE MACBOYLES AND KING DEVELOPED THE UNDERGROUND MINE IN 1941-42 AND PRODUCED ABOUT 800 TONS OF WHITE TALC. ABOUT 600 TONS OF TALC WAS PRODUCED FROM 1952-1957 FROM UNDERGROUND WORKINGS. CHLORITE WAS MINED BY LESSEES FROM OPEN PIT STARTING ABOUT 1963

Reference information

Bibliographic references

  • Deposit

    PAPKE, K.G., 1975, NBMG BULL 84, P. 43-45.

  • Deposit

    QUADE, JACK, 1982, FIELD EXAMINATION, 6-4-82.

  • Production

    PAPKE, K.G., 1975, P.45

General comments

Subject category Comment text
Deposit TALCOSE MINERALIZATION IS PRESENT ALONG THE SOUTHERN CONTACT OF AN ELONGATE INTRUSIVE BODY WITH DOLOMITE. TALCOSE ORE BODY WAS BORDERED BY PORPHYRITIC QUARTZ DIORITE ON THE NORTH AND DOLOMITE ON THE SOUTH. CHLORITE-RICH MATERIAL OCCURRED IN THE HANGING WALL OF THE WHITE TALC. THE CHLORITE-RICH MATERIAL COMPRISES MOST OF THE ORE ZONE, WITH (SMALL, IRREGULAR TALC BODIES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1982 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology

Beyond USGS

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

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.