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Crimora Mine

Past Producer in Augusta county in Virginia, United States with commodities Cobalt, Manganese
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Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10204097
MAS/MILS ID 0510150013
Record type Site
Current site name Crimora Mine

Geographic coordinates

Point of reference Trench
Geographic coordinates: -78.80974, 38.14065 (WGS84)
Elevation 469
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Augusta(county)

Virginia(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Crimora(quadrangle 1:24,000 scale)

Charlottesville(quadrangle 1:100,000 scale)

Charlottesville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Shenandoah(hydrologic unit)

Potomac(hydrologic accounting unit)

Potomac(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States Virginia Augusta

Commodities

Commodity Importance
Cobalt Critical Tertiary
Manganese Critical Tertiary

Materials information

Materials Type of material
Chert Unknown
Clay Unknown
Limonite Unknown
Manganite Unknown
Psilomelane Unknown
Pyrolusite Unknown
Quartz Unknown
Wad Unknown

Nearby scientific data

Trench (1) -78.80974, 38.14065
ListMap

Economic information

Ore body information

  • Thickness 30M
    Length 305M
    Width 61M
    Area 15HA
    Depth to top 5.3M
    Field Value
    Type of Orebody #1 OTHER
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 BRECCIA FILL
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin OXIDATION
    Secondary mode of Origin RESIDUAL CONCENT
    Primary Ore Control BEDDING
    Secondary Ore Control OTHER
    Degree of Wallrock Alter. NONE
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N40E:
    Minimum Depth to Top 0
    Total Surface Area (HA) 15
    Date of Last Modification 820616

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No
Year of first production 1867

Mining district

District name Crimora

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Dominion Manganese Corp.
    Interest 100
    Home office New York
    Year 1976

Reference information

General comments

Subject category Comment text
Deposit RECORDS 800-836 OF 1976 ENTRY. GENERAL INFO. FOR ALL RECORDS BULL 940-J - COBALT DATA BULL 17 - GENERAL DATA FOR ALL FILES. RECORD 010/ DOMINION MANGANESE CORP. OWNS 1000 ACRES IN THIS OF WHICH THE MIN. RIGHTS OF 445 ACRES AROUND DORSEY HANGER D BELONG TO CRIMORA MANG. CORP. RECORD 040/ THE DORSEY HANGER RESERVOIR IS ONE MILE NORTH OF AND THE SOUTH RIVER IS 2 MILES WEST OF IT. A R.E.A. 2300 VO POWER LINE IS 1.4 MILES NW OF THE MINE. MAXIMUM SURFACE AREA DISTURBED WAS ROUGHLY MEASURED FROM A M AREA MAP AS 1000 FT BY 1600 FT. (RECORD 700) REC 040 SOIL TEXT.-GRAVEL OVERBURDEN WITH SAND LOCALLY OVER CLAYEY WASH CONTAINING CHERT AND QTZITE FRAG. DEPOSIT AT WESTERN BORDER OF SHENANDOAH NATL PARK REC 050 METH 1&2- 1867-1882, 20,000 LN TNS MINED. METH 3&4 1893 (NOW CAVED), 131,722 LT, 6000 FT TUNNEL UNDER OLD DO MINE UNSUCCESSFUL ATTEMPT AT HYDRAULIC MINING. 1895-1916, 7, MILL ERECTED 1916. PRODUCTION DATA FOR CRIMORA & OLD DOMINIO OVER 185,000 LN TNS AVG 44% & 48% MN. RECORD 050/ DEPOSIT SAMPLED BY PIERCE (1943) AND BU MINES (1 RECORD 061/ SANDSTONE IS BRECCIATED. RECORD 070/ COBALT IS ADSORBED ON CRYPTOMELANE AND WAS DEPOS GROUND WATER. 2 ORE SAMPLES CONTAINED 0.53% AND 0.28% CO (RE REC 080 DEPOSIT IS SITUATED IN A SW PLUNGING SYNCLINAL TROU FLANKED BY ERWIN QTZITE AND FLOORED BY SHADY DOLO. RESIDUAL ALLUVIAL OVERBURDEN DEP OF GRAVEL AND SAND THINS E-W FROM 35 AND IS LOCALLY OVERLAIN BY A CLAYEY WASH CONTAINING CHERT AN FRAGS. ORE PRINCIPALLY IN CLAY AND 7 TYPES ARE RECOGNIZED PSILOMELANE IN LENSES. 2) CELLULAR PSIL. WITH PYROLUSITE. 3) PYRO. 4) SHALY ORE-WAD WITH PYRO. 5) HARD INTERGROWN QTZ, IR 6) BRECCIATED QTZITE CEMENTED ANDREPLACED BY PSIL. & PYRO. 7 IN BALLS AND FLAKES. TYPE 1&2 MOST PRODUCTIVE. MN CARBONA POSITED IN SHADY, THEN EXPOSED TO SURFACE WATERS THAT OXIDIZ REDEPOSITED ORE AS OXIDES DURING WEATHERING OF SHADY DOLO. MTN ZONE DIMENSIONS FROM REC 700 AND APPEAR TO BE FOR OPEN P ORE BEARING CLAY HIGHLY VARIABLE IN THICKNESS AND RANGES 4-1

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Sapakoff U.S. Bureau of Mines

Beyond USGS

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

External references

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