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Boss Mine

Past Producer in Clark county in Nevada, United States with commodities Gold, Silver, Platinum, Palladium, Lead, Copper, Titanium, Metal
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Geologic information

Identification information

Deposit ID 10047002
MRDS ID M242242
Record type Site
Current site name Boss Mine
Alternate or previous names Boss Gold Mining Co., Platinum Gold Mining Co.

Geographic coordinates

Geographic coordinates: -115.57056, 35.81944 (WGS84)
Elevation 975
Relative position 7 MI WEST OF GOODSPRINGS.
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Geographic areas

Country State County
United States Nevada Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 024S 057E 27,34 SE4 OF SE4 (27) OF NE4 OF NE4 (34) Nevada

Comments on the location information

  • UNSURVEYED. LOCATION GIVEN IS ON GROUP OF ADIT SYMBOLS SHOWN AS BOSS MINE ON TOPO MAP INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Platinum Primary
Palladium Primary
Lead Secondary
Copper Secondary
Titanium, Metal Tertiary

Comments on the commodity information

  • ANOMALOUS RADIOACTIVITY NOTED IN LIMONITE LENSES SURROUNDED BY CHRYSOCOLLA HALOS. PLATINUM-GROUP METALS ARE FOUND IN PLUMBOJAROSITE. IT HAS BEEN SPECULATED THE SPERRYLITE IS PRESENT, BUT IT HAS NEVER BEEN OBSERVED. PIPELIKE MASSES OF CELLULAR QUARTZ IMPREGNATED WITH CHALCOPYRITE AND PYRITE CONTAINED AU, PT, PD. ADDITIONAL UNNAMED TI MINERALS ALSO REPORTED PRESENT

Materials information

Materials Type of material
Bornite Ore
Brochantite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Copper Ore
Cuprite Ore
Gold Ore
Libethenite Ore
Malachite Ore
Rutile Ore
Bismutite Gangue
Hematite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Hydrothermal, Dolomitization And Recrystallization Of Country Rock; Quartz Monzonite Is Kaolinized. Strong Supergene Leaching

Analytical data

Result PLUMBOJAROSITE ANALYSIS: AU=234 OZ/TON (8,000 PPM), PT=15 OZ/TON (510 PPM), PD=64 OZ/TON (2,200 PPM) (HEWETT, 1931, P. 117), MAX FOR PT WAS 230 OZ/TON (7,900 PPM). EARLY,1915, ASSAYS YIELDED 7.38 OZ/TON PT (250 PPM), 11.55 OZ/TON AU (400 PPM)
Result 99.08 OZ/TON PT (3,400 PPM), 111 OZ/TON AU (3,800 PPM), 16 OZ/TON PD (550 PPM). PD:PT=5:1, PGE>AU

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Valentine Member Of Sultan Formation;Monte Cristo Formation
    Rock description Valentine Member Of Sultan Formation;Monte Cristo Formation

Nearby scientific data

(1) -115.57056, 35.81944
ListMap

Geologic structures

Type Description Terms
Regional Keystone Thrust, Broad Anticlinal Arch
Local Ironside Fault; Minor Faults

Ore body information

  • General form FISSURE-FAULT ORE SHOOT, ELLIPTICAL PIPE
    Dip 15-45 NW
    Thickness 7.62M
    Width 7.62M
    Length 60.96M

Controls for ore emplacement

  • Fractures, Faults, Faults In A Pipe Of Cellular Quartz. Limestone Is Brecciated

Comments on the geologic information

  • SILL LIES 1500 FT NORTHEAST OF MINE. BLACK TO GREENISH TALCY MATERIAL CONTAINED THE RICHEST VALUES. ZONING OF DEPOSIT SHOWS PGE AT CORE. TI ORE BODY IS LOCATED ALONG MINOR FAULT SEPARATING BASE OF MONTE CRISTO FORMATION FROM VALENTINE MEMBER OF SULTAN LIMESTONE. SMALL AMOUNT OF RUTILE AND OCTAHEDRITE FOUND IN OREBODY BUT NOT IN WALL ROCKS.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1886
Discoverer Joseph Yount
Year of first production 1886
Year of last production 1937
Production years 1898-1900, 1914-1937

Mining district

District name Goodsprings (Yellow Pine) District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Yount, S. E.
    Home office Los Angeles, Calif.

Production statistics

  • Year 1914
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^386.49 Oz Au, 322 Oz Ag, 13,194 Lb Cu, 33 Lb Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 9,370g
    Ore Gold Gold 10,910g
    Ore Copper Copper 6mt
    Ore Lead Lead 0mt
  • Year 1915
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^38.27 Oz Au, 409 Oz Ag, 36,986 Lb Cu, 720 Lb Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 11,460g
    Ore Gold Gold 1,081g
    Ore Copper Copper 17mt
    Ore Lead Lead 0mt
  • Year 1916
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^373.00 Oz Au, 1,119 Oz Ag, 181.6 Oz Pt, 149,200 Lb Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 31,590g
    Ore Gold Gold 10,530g
    Ore Copper Copper 67mt
    Ore Platinum PGE 5,120g
  • Year 1917
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^438.25 Oz Au, 2,506 Oz Ag, 138.0 Oz Pt, 355.0 Oz Pd, 199,421 Lb Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 70,760g
    Ore Gold Gold 12,370g
    Ore Copper Copper 90mt
    Palladium Ore Palladium PGE 10,020g
    Ore Platinum PGE 3,890g
  • Year 1918
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^170.58 Oz Au, 1.755 Oz Ag, 42.1 Oz Pt, 35.7 Oz Pd, 129,972 Lb Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 50g
    Ore Gold Gold 4,810g
    Ore Copper Copper 59mt
    Palladium Ore Palladium PGE 1,000g
    Ore Platinum PGE 1,180g
  • Year 1919
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^359.22 Oz Au, 858 Ag, 34.3 Oz Pt, 203.3 Oz Pd, 26,048 Lb Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 24,220g
    Ore Gold Gold 10,140g
    Ore Copper Copper 1mt
    Palladium Ore Palladium PGE 5,740g
    Ore Platinum PGE 960g
  • Year 1920
    Period 1914-1920
    Material AU
    Accuracy Accurate
    Description Cp_Grade: ^0.506 Oz/Ton Ave.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 14g/mt
  • Year 1920
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^6.0 Oz Au, 45 Oz Ag, 13,278 Lb Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 1,270g
    Ore Gold Gold 160g
    Ore Copper Copper 6mt
  • Year 1920
    Period 1914-1920
    Material AG
    Accuracy Accurate
    Description Cp_Grade: ^2.004 Oz/Ton Ave.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 56g/mt
  • Year 1920
    Period 1914-1920
    Material PT
    Accuracy Accurate
    Description Cp_Grade: ^0.087 Oz/Ton Ave.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Platinum PGE 2g/mt
  • Year 1920
    Period 1914-1920
    Material PD
    Accuracy Accurate
    Description Cp_Grade: ^0.170 Oz/Ton Ave.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Palladium PGE 5g/mt
  • Year 1920
    Period 1914-1920
    Material CU
    Accuracy Accurate
    Description Cp_Grade: ^162 Lb/Ton Ave.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper 4574g/mt

Comments on the production information

  • PRODUCTION FROM 1936 CAME FROM NBMG OPEN-FILE DATA. GROSS TOTAL VALUE OF OUTPUT WAS $210,000. 3,500 TONS OF ORE SHIPPED 1916. 295 TONS PT-BEARING ORE PRODUCED 1917. 17 OZ PT FROM 443 TONS ORE (EQUAL TO 0.24 OZ/TON, 8.2 PPM) AND 400 OZ PD (EQUAL TO 0.9 OZ/TON, 31 PPM) IN 1918. 90 TONS PT-PD ORE PRODUCED 57 OZ PT AND PD.

Workings at the site

  • Type of workings Underground
    Length 1828.8M
    Overall depth 152.4M

Comments on the workings information

  • WORKINGS CONSISTED OF 3 ADITS (1915) AND NOW CONSISTS OF 5 ADITS WITH A 2-BUCKET, 1,000 FT LONG, AERIAL TRAM CONNECTING THE UPPER AND LOWER WORKINGS. MORE THAN 6,000 FT OF WORKINGS BY 1919

Comments on development

  • PGE DISCOVERED IN 1914 BY H.K. RIDDALL. PREVIOUS OWNER BOSS GOLD MINING CO.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M242242

Bibliographic references

  • Deposit

    LONGWELL, C.R., PAMPEYAN, E.H., BOWYER, BEN, AND ROBERTS, R.J., 1965, GEOLOGY AND MINERAL DEPOSITS OF CLARK COUNTY, NEVADA: NEVADA BUREAU OF MINES BULLETIN 62, P. 111-112, 18.

  • Deposit

    HEWETT, D.F., 1931, GEOLOGY AND ORE DEPOSITS OF GOODSPRINGS QUADRANGLE, NEVADA: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 162, P. 114-118.

  • Deposit

    KNOPF, ADOLPH, 1915, A GOLD-PLATINUM-PALLADIUM LODE IN SOUTHERN NEVADA, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY: U.S. GEOLOGICAL SURVEY BULLETIN 620, P. 1-12.

  • Deposit

    MUDD, S.W., 1915, THE BOSS MINE, GOODSPRINGS, NEV.: MINING AND SCIENTIFIC PRESS, V. 110, P. 297-298.

  • Deposit

    NEVADA BUREAU OF MINES AND GEOLOGY, CLOSED FILE DATA, ITEM #5883, P. 44-45.

  • Deposit

    CRAMPTON, F.A., 1916, PLATINUM AT THE BOSS MINE, GOODSPRINGS, NEV.: MINING AND SCIENTIFIC PRESS, V. 112, P. 479-482.

  • Deposit

    KENNEDY, J.C., 1915, OCCURRENCE OF PLATINUM AT BOSS MINE, NEVADA: MINING AND ENGINEERING WORLD, V. 42, P. 939-940.

  • Deposit

    SMITH, 1983, FIELD EXAMINATION, NEVADA BUREAU OF MINES AND GEOLOGY, 10 FEB 83.

  • Deposit

    LIND, S.C., DAVIS, C.W., AND VON BERNEWITZ, M.W., 1923, PLATINUM ASSAYS AND PLATINUM PROMOTIONS: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 2496, P. 19.

  • Deposit

    LECHLER, P.J., AND HSU, L.C., 1988, REVIEW OF PLATINUM-GROUP METAL DEPOSITS WITH NEW DATA FROM NEVADA, PREPRINT FOR AMERICAN INSTITUTE OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS MEETING, 1988, 7 P.

  • Deposit

    BEAL, L.H., 1963, INVESTIGATION OF TITANIUM OCCURRENCES IN NEVADA: NEVADA BUREAU OF MINES REPORT 3, 42 P.

  • Production

    HEWETT, 1931

General comments

Subject category Comment text
Deposit ALL THE ORE WAS RESTRICTED TO A SINGLE CONTINUOUS ORESHOOT ALONG NORTHWEST OR HANGING WALL SIDE OF NORTHEAST-TRENDING FAULT ZONE, EXPOSED ON THE 100 FT LEVEL AS ELLIPTICAL PIPES, 25 FT DIAMETER.
Deposit THIS RECORD HAS BVEEN REVISED TO INCLUDE INFORMATION FROM RECORD NUMBERS W001563 AND M045353, WHICH HAVE BEEN DELETED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1972 Lyles, B.F. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-FEB-1983 Cooper, Margaret U.S. Geological Survey
Updater 01-JUN-1991 Peterson, Jocelyn A. U.S. Geological Survey