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Florence Mine

Past Producer in Esmeralda county in Nevada, United States with commodities Gold, Silver, Copper, Bismuth, Zinc, Antimony
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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. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10046708
MRDS ID M241907
Record type Site
Current site name Florence Mine
Alternate or previous names Florence Goldfield Mining Co., Florence Group, Consisting of the Florence, Red King, Cornishman,, Firelight Claimsplus the Emma Fraction.

Geographic coordinates

Geographic coordinates: -117.22063, 37.71023 (WGS84)
Elevation 1753
Relative position ABOUT 0.8 MILE EAST OF THE CENTER OF GOLDFIELD

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Goldfield(quadrangle 1:24,000 scale)

Goldfield(quadrangle 1:100,000 scale)

Goldfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ralston-Stone Cabin Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003S 042E 01 Nevada

Comments on the location information

  • ADJOINS GOLDFIELD CONSOLIDATED MINES CO. PROPERTIES AT THE SOUTH END OF THAT BLOCK. ADJOINS SW SIDE OF ATLANTA MINES CO. PROPERTY. FLORENCE GOLDFIELD PROPERTY COVERS 67.7 ACRES. UTM IS TO ONE MAIN SHAFT ON THE PROPERTY. UTM IS TO ONE MAIN SHAFT ON THE PROPERTY. ; INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary
Bismuth Critical Tertiary
Zinc Critical Tertiary
Antimony Critical Tertiary

Comments on the commodity information

  • DEEPER LEVELS CONTAINED MORE COPPER AND SILVER THAN NEAR-SURFACE ORES.

Materials information

Materials Type of material
Bismuthinite Ore
Chalcopyrite Ore
Famatinite Ore
Gold Ore
Sphalerite Ore
Alunite Gangue
Barite Gangue
Gypsum Gangue
Kaolinite Gangue
Limonite Gangue
Marcasite Gangue
Quartz Gangue
Pyrite Unknown

Alteration

  • (Local) Pyritization, Alunitization, Silicification

Analytical data

Result A 1905 SHIPMENT RAN 100.8 OZ/TON AU
Result 3.5 OZ/T AG
Result 3.5% CU.

Mineral occurrence model information

Model code 154
USGS model code 25e
Deposit model name Epithermal quartz-alunite Au
Mark3 model number 38

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Rock unit name Milltown Andesite;Milltown Andesite
    Rock description Milltown Andesite;Milltown Andesite
    Stratigraphic age (youngest) Miocene
    Chronological age 21.5
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Miocene
    Chronological age 21.5

Nearby scientific data

(1) -117.22063, 37.71023
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault Gouge Zone Terminates South End Of Ledge; Pre-Ore Faulting
Type of structure Regional
Structure description Columbia Mountain Fault; Caldera Ring Fracture Zone

Ore body information

  • General form TABULAR TO IRREGULAR
    Strike NNW
    Dip 75 W TO 150-FT LEVEL, FLATTENING TO 35-40 BELOW
  • General form TABULAR TO IRREGULAR
    Dip 75 W TO 150-FT LEVEL, FLATTENING TO 35-40 BELOW

Controls for ore emplacement

  • Shattered Zone, Fissuring

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1903
Discoverer Charles Taylor Of Tonopah, Grubstaked By George A. Kernick And George E. Mcclelland
Year of first production 1904

Mining district

District name Goldfield District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Newmont Mining Corp.
    First year 1948
    Last year 1951

Comments on the production information

  • OVER $6 MILLION WORTH OF GOLD PRODUCED BY SEVERAL LESSEES FROM 1904-1908. ONE SHIPMENT OF 75678 LB ORE IN 1904 CONTAINED ABOUT 53 OZ/T AU, AND ANOTHER 1,855 LB. LOT RAN ABOUT 396 OZ/T AU.

Workings at the site

  • Type of workings Underground
    Length 4827.9M
    Overall depth 387.1M

Comments on the workings information

  • SHAFT HAD REACHED 1270-FT DEPTH BY 1913, WITH LEVELS EVERY 50 FT DOWN TO 350 FT LEVEL, WINZES, STOPES. MANY OTHER SHAFTS WERE WORKED BY LESSEES IN EARLY YEARS

Comments on development

  • THE FLORENCE WAS ONE OF THE 4 MAJOR EARLY PRODUCERS IN GOLDFIELD FROM 1904-1906. SHIPMENTS BEGAN FROM THE SWEENEY LEASE IN 1904. THE SWEENEY LEASE GROSSED ABOUT $600,000 TO JAN. 1905. THE FLORENCE-GOLDFIED MINING CO. WAS ORGANIZED IN MAY 1905. FLORENCE MILL BEGAN REDUICNG ORE IN JAN. 1909. THE UNTIL DEC. 11, 191U WHEN IT WAS DESTROYED BY FIRE. THE COMPANY WENT INTO RECEIVER SHIP IN 1916. THE (LITTLE FLORENCE, ROGERS SYNDICATE) REILLY, AND ENGIEERS, LEASES WERE TWO OF THE BIG EARLY PRODUCERS ON THE FLORENCE PROPERTY (1907-1908) MORE LEASES WERE WORKED IN 1920-1921

Reference information

Bibliographic references

  • Deposit

    SHAMBERGER, H.A., 1982, THE STORY OF GOLDFIELD; NEVADA HISTORICAL PRESS, CARSON CITY, NEVADA, 240 P.

  • Deposit

    NBMG REPORT 33, P. 77-86

  • Deposit

    LINCOLN, F.C., 1923, MINING DISTRICTS AND MINERAL RESOURCES OF NEVADA; RENO, NEVADA.

  • Deposit

    WEED, W.H., ED., 1922, THE MINES HANDBOOK, VOL. XV, P. 1203.

  • Deposit

    NBMG BULL 78

  • Deposit

    USGS PP 66, P. 225-230.

  • Production

    SHAMBERGER, H.A., 1982, P. 199.

General comments

Subject category Comment text
Deposit IRREGULAR LEDGE WITH MANY LENTICULAR PAYSHOOTS IRREGULARLY DISTRIBUTED THROUGHOUT IT.
Deposit ABOUT 1919 LESSEES ON THE FLORENCE DROVE AN EXPLORATORY CROSSCUT 1000 FT DUE WEST FROM THE FLORENCE SHAFT AT THE 358-FT LEVEL. IN 1947, NEWMONT MINING CORP. EXTENDED IT ABOUT 1000 FT AND INTERSECTED THE COLUMBIA MOUNTAIN FAULT 2500 FT SOUTH OF THE SILVER PICK DEVELOPMENT. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-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.

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Newmont Mining Corp. — renamed to Newmont Corporation (2019)
    Renamed from Newmont Mining Corporation to Newmont Corporation in early 2020 (after the 2019 merger with Goldcorp).

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

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.