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Embrey Mine

Past Producer in Culpeper county in Virginia, United States with commodity Gold
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10067624
MRDS ID W000418
Record type Site
Current site name Embrey Mine
Alternate or previous names Embry Mine, Embry and Brooks Mine

Geographic coordinates

Geographic coordinates: -77.71109, 38.37087 (WGS84)
Elevation 79
Relative position 1.6 MI (2.6 KM) NW OF ELEYS FORD.

Site location context

Political divisions (FIPS codes)

Culpeper(county)

Virginia(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chancellorsville(quadrangle 1:24,000 scale)

Fredericksburg(quadrangle 1:100,000 scale)

Washington(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rapidan-Upper Rappahannock(hydrologic unit)

Lower Chesapeake(hydrologic accounting unit)

Lower Chesapeake(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States Virginia Culpeper

Comments on the location information

  • 0.75 MI (1.21 KM) OFF WEST SIDE OF STATE ROAD 610 AT ITS CROSSING OF HAZEL RUN AND 0.25 MI (0.4 KM) NE OF RAPIDAN RIVER.

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • HIGH PERCENTAGES OF MAGNETITE IN THE ORE. THE MINE IS ON THE SAME V EIN AS THE CULPEPER MINE.

Materials information

Materials Type of material
Gold Ore
Calcite Gangue
Magnetite Gangue
Pyrite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Chopawamsic Formation
    Rock description Chopawamsic Formation
    Stratigraphic age (youngest) Early Cambrian
    Stratigraphic age (youngest) Early Cambrian
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -77.71109, 38.37087
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne-Sw Trend, Columbia Syncline

Comments on the geologic information

  • GEOL.DESC: COUNTRY ROCK IS DARK GREENISH GRAY AND FINELY FOLIATED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1861
Year of first production 1861
Year of last production 1865

Mining district

District name Gold-Pyrite Belt

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner C. G. Mcdaniel C/O Hilldrop Transfer Co., Fredericksburg, Va.

Comments on the production information

  • NO INDI CATION IS GIVEN AS TO THE AMOUNT OF ORE PRODUCED.

Comments on the workings information

  • IN 1974, A CAVED SHAFT, TWO SMALL PITS, CONCRETE FOUNDATION, AND A LARGE DUMP WERE EVIDENT. TWO SHAFTS WERE SUNK IN THE 1800'S, ONE 30.5 M (100 FT) AND ONE 43 M (140 FT) DEEP, AND WERE CONNECTED BY LEVELS.

Comments on development

  • MINE WAS WORKED BEFORE AND AFTER THE CIVIL WAR. THE ORE WAS MILLED BY A BATTERY OF TEN STAMPS, TABLES, AND AMALGAMATION. IN 1982, A.A. BEIRO CONST. CO., ALEXANDRIA, VA. DID SOME EXPLORATORY WORK ON THE SITE: ONE HOLE JUST NW OF THE FOUNDATION OF THE OLD PLANT NOTED 2-3 PPM AU.

Reference information

Bibliographic references

  • Deposit

    LONSDALE , J.T., 1927, VA. GEOLOGICAL SURVEY BULL. 30, P 77.

  • Deposit

    LUTTRELL, G.W., 1966, VA. MIN. RES. REPORT 7, P. 46.

  • Deposit

    SWEET, P C, 1980, GOLD IN VIRGINIA: VIRGINIA DIVISION OF MINERAL RESOURCES, PUBLICATION 19, 77 P

  • Deposit

    1974 RECON VA DIV MIN RES: LOCATED SITE

General comments

Subject category Comment text
Deposit Discovery Year: PRE-CIVIL WAR
Deposit MINE WAS WORKE D BOTH BEFORE AND AFTER THE CIVIL WAR. A 100 FT. AND A 140 FT. SHAFT W AS SUNK, AND A 10 STAMP MILL WAS BUILT. DIFFICULTY OF WORKING WITH THE ORE BELOW WATER LEVEL LED TO ITS CLOSURE. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 Wright, Nancy A. U.S. Geological Survey
Updater 01-DEC-1987 Sweet, Palmer C. U.S. Geological Survey

Beyond USGS

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

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