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Brewer Mine

Unknown in Chesterfield county in South Carolina, United States with commodities Gold, Silver, Copper, Molybdenum, Tin, Kyanite, Pyrite
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Ownership information
  15. Production statistics
  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 10069808
MRDS ID W007508
Record type Site
Current site name Brewer Mine
Related records 10177486

Geographic coordinates

Geographic coordinates: -80.4165, 34.65012 (WGS84)
Elevation 152

Site location context

Political divisions (FIPS codes)

Chesterfield(county)

South Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jefferson(quadrangle 1:24,000 scale)

Lancaster(quadrangle 1:100,000 scale)

Spartanburg(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lynches(hydrologic unit)

Lower Pee Dee(hydrologic accounting unit)

Pee Dee(hydrologic subregion)

South Atlantic-Gulf(hydrologic region)

Geographic areas

Country State County
United States South Carolina Chesterfield

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary
Molybdenum Tertiary
Tin Critical Tertiary
Kyanite Tertiary
Pyrite Tertiary

Comments on the commodity information

  • Ore Minerals May Also Contain Alena and Telluride Minerals

Materials information

Materials Type of material
Cassiterite Ore
Bornite Ore
Bismuthinite Ore
Tetrahedrite Ore
Sphalerite Ore
Topaz Ore
Molybdenite Ore
Pyrite Ore
Chalcopyrite Ore
Enargite Ore
Gold Ore
Sericite Gangue
Pyrophyllite Gangue
Kyanite Gangue
Andalusite Gangue
Quartz Gangue

Alteration

  • (Local) Metamorphosed Advanced Argillic Alteration; Probably Primary Andalusite. Two Generations Of Topaz.

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

Nearby scientific data

(1) -80.4165, 34.65012
ListMap

Economic information

Ore body information

  • General form IRREGULAR MASSES, STRINGERS, AND ARCUATE PIPE
    Strike N 10 W
    Dip 80 W
    Length 400M
    Width 140M
    Depth to bottom 80M

Controls for ore emplacement

  • Arcute Breccia Pipe

Comments on the geologic information

  • TOPAZ, ANDALUSITE, KYANITE, AND PYROPHYLLITE OCCUR IN IRREGULAR MASSES AND STRINGERS IN SILICIFIED SCHISTOSE VOLCANICuROCKS. ENARGITE-RICH SILICEOUS GOLD ORE IN ARCUTE BRECCIA ZONE WITHIN SILICEOUS ALTERATION ZONE, SURROUNDED BY ALUMINO-SILCATE AND SERICITIC ALTERATION HALOS.uTHE SILICEOUS ZONE IS MORE THAN 140 M WIDE AND 400 M LONG. THE SERICITICuZONE EXTENDS UP TO 1 KM ON EITHER SIDE OF THE SILICEOUS ZONE.uFOLDING ALONG N 70 E-TRENDING AXIS EXPOSES DIFFERENT LEVELS WITHIN THE ORIGINALuHYDROTHERMAL SYSTEM. THE FOLDS ARE ASSIMETRIC WITH THE FOLDS SLIGHTLY OVERTURNED TO THE SOUTHEAST. THE HYDROTHERMAL ALTERATION ZONE IS 1-2 KM WIDE (E-W) AND MORE THAN 3 KM LONG (N-S DIRECTION).uTHE BRECCIA CLASTS VARY FROM LESS THAN 1 MM TO 25 CM IN DIAMETER AND AREuCOMPOSED OF FELSIC VOLCANIC AND SEDIMENTARY ROCKS. SEVERAL PERIODS OF BRECCIATION AND SILICIFICATION ARE APPARENT. SULFIDE CONTENTS MAY BEuUP TO 80% VOL BUT AVERAGE 2-3% IN THE UNOXIDIZED ORE. THE MINERALIZED ZONEuOCCURS AT THE
  • INTERSECTION OF TWO FAULTS ONE NORTH-TRENDING AND ONEuWNW-TRENDING. METAMORPHISM IS LOWER GREENSCHIST FACIES.
  • CAROLINA SLATE BELT

Economic information about the deposit and operations

Commodity type Both
Deposit size Medium
Significant No
Discovery year 1828
Year of first production 1844
Year of last production 1992
Production years 1828-1862; 1879-1895; 1934-1940; 1987-1990; 1992

Ownership information

  • Type Operator
    Owner Westmont Mining

Production statistics

  • Year 1987
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.042 Opt
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 1g/mt

Comments on the reserve resource information

  • PRODUCTION RESUMED IN 1992 AFTER A LEACH POND RUPTURE CL0SED THE MINE FOR 1uYEAR IN 1991. HOWEVER, PRODUCTION WAS SCHEDULED TO END IN 1993. PRODUCTIONuFROM THE 1989-1993 PERIOD WAS ONLY FROM OXIDIZED ORE. ORE RESERVES FOR THEuSULFIDE ZONE ARE NOT KNOWN.

Workings at the site

  • Type of workings Surface
    Overall depth 30M
    Overall length 274.32M
    Overall width 90M

Comments on the workings information

  • TWO LARGE PITS THE BREWER (90 M DIAMETER, 30 M DEPTH); HARTMAN PIT (45 M DIAMETER, 15 M DEPTH WERE EXPLOITED BEFORE 1980'S. DRAINAGE TUNNEL MORE THAN 300 M LONG INTERSECTED THE BREWER PIT FROM THE EAST SIDE.

Comments on development

  • MINED FOR TOPAZ 1941-48

Reference information

Bibliographic references

  • Deposit

    FRIES, CARL, JR., 1942, TOPAZ DEPOSITS NEAR THE BREWER MINE, CHESTERFIELD CO., S. C.: U.S. GEOL. SURV. BULL. 936 - C.

  • Deposit

    PEYTON, A. L., AND LYNCH, V. J., 1953, INVESTIGATION OF THE BREWER TOPAZ DEPOSITE, CHESTERFIELD CO., S. C.: U.S. BUREAU OF MINES REPT. INV. 4992.;PARDEE, J.T., AND PARK, C.F., JR., 1948, GOLD DEPOSITS OF THE SOUTHERN PIEDMONT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 213, P. 106-111.; BUTLER, J.R., SCHEETZ, J.W., STONEHOUSE, J.M., TAYLOR, D.R., AND CALLAWAY, R.Q., 1988, THE BREWER GOLD MINE, CHESTERFIELD COUNTY, SOUTH CAROLINA: FIELD TRIP GUIDEBOOK FOR THE GSA SOUTHEAST SECTION ANNUAL MEETING, COLUMBIA, SOUTH CAROLINA, 22P.

  • Production

    SCHEETZ, STONEHOUSE, AND ZWASCHKA, 1991, MINING ENGINEERING

  • Reserve-Resource

    SKILLINGS MAGAZINE, 1987, 1988, 1989, 1990

  • Deposit

    Peyton, A. L., And Lynch, V. J., 1953, Investigation Of The Brewer Topaz Deposit, Chesterfield Co., S. C.: U.S. Bureau Of Mines, Report Of Investigations 49Peyton, A. L., And Lynch, V. J., 1953, Investigation Of The Brewer Topaz Deposit, Chesterfield Co., S. C.: U.S. Bureau Of Mines, Report Of Investigations 49

  • Deposit

    Fries, Carl, Jr., 1942, Topaz Deposits Near The Brewer Mine, Chesterfield Co., S. C.: U.S. Geol. Surv. Bull. 936 - C.Fries, Carl, Jr., 1942, Topaz Deposits Near The Brewer Mine, Chesterfield Co., S. C.: U.S. Geol. Surv. Bull. 936 - C.

General comments

Subject category Comment text
Deposit TANYARD AND WEST PLACER MINES ASSOCIATED WITH THE LODE DEPOSIT.
Deposit RECENT MINING HAS EXPLOITED ONLY THE WEATHERED CAP OF THEuDEPOSIT. WHICH EXTENDS TO ABOUT 30 M BELOW THE PRESENT SURFACE.u ORE GRADE MATERIAL CONTINUES BELOW THE OXIDATION.

Reporter information

Type Date Name Affiliation Comment
Editor 01-DEC-2002 Nicholson, S.W. U.S. Geological Survey Added Continent, Country, And State Fields; Formatted Fields Where Necessary

Beyond USGS

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

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