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Lutz Chromite Placer

Prospect in Baltimore county in Maryland, United States with commodity Chromium
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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. 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. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10145896
MAS/MILS ID 0240050011
Record type Site
Current site name Lutz Chromite Placer

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -76.81247, 39.41003 (WGS84)
Elevation 165
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Baltimore(county)

Maryland(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Reisterstown(quadrangle 1:24,000 scale)

Baltimore(quadrangle 1:100,000 scale)

Baltimore(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Gunpowder-Patapsco(hydrologic unit)

Upper Chesapeake(hydrologic accounting unit)

Upper Chesapeake(hydrologic subregion)

Mid Atlantic(hydrologic region)

Geographic areas

Country State County
United States Maryland Baltimore

Comments on the location information

  • ADJACENT TO LAND SCHEDULED FOR STATE ENVIRONMENTAL ENHANCEMENT AREA.

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Serpentine Unknown

Nearby scientific data

Ore Body (1) -76.81247, 39.41003
ListMap

Economic information

Ore body information

  • Thickness 0.8M
    Length 610M
    Width 30M
    Area 3.1HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 PLACER
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .8
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 3.1
    Date of Last Modification 820616

Comments on the geologic information

  • THE CHROME BEARING SAND HAS ITS ORIGIN IN SERPENTINITE SUBSEQUENT WEATHERING AND EROSION FREED FINELY DIVIDED CHROMITE WHICH ACCUMULATED AS A MINABLE SAND AND GRAVEL PLACER

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant Yes
Mining method Alluvial Mining
Milling method Gravity

Mining district

District name Soldiersdelight

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Lutz, A.
    Interest 100
    Home office Maryland
    Year 1943

Comments on the production information

  • CR:FE RATIO ASSUMED TO BE 1.4

Reserves and resources

  • Type In-situ
    Estimate year 1943
    Indicated 22100mt ore
    Demonstrated 22100mt ore
    Total resources 22100mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 1.44 wt-pct Chromium Major 1943

Comments on the reserve resource information

  • 22100 MT @ 1.44% = WASHED SAND PORTION OF DEP.=2/3 OF TOTAL; 22100/(2/3)=33000 MT SAND AND GRAVEL @ 0.96 % CR2O3 RESERVE TAKEN FROM WAR MINERAL REPORT FILE 537, 1943 M9C4 = M1C1.
  • TONNAGE IS IN-SITU ORE (REC=100%); GRADE IN TERMS OF CR2O3.

Workings at the site

  • Type of workings Surface
    Area 1.9HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .88
    Percent Waste Rock 0
    Avg. Overburden Thickness 0
    Hardness of Ore SAND, SILT
    Capacity 200
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 2.67
    Units of Production $/MT ORE
    Operating Days per Year 165
    Operating Shifts per Day 1
    Year of Information 1979

Comments on the workings information

  • LAND EFFECT SIG. AS PROPERTY ADJACENT TO SOLDIERS DELIGHT ENVIRONMENTAL AREA. STATE HAS PURCHASED LARGE TRACTS IN AREA FOR THE PURPOSE OF PRESERVING NATURAL FEATURES. MINING NEARBY MAY BE RESTRICTED.

Reference information

Bibliographic references

  • Reserve-Resource

    JERMAIN,G. WAR MINERALS RPT. LUTZ CHROMITE PLACER,NO.537

  • Reserve-Resource

    BUMINES, 1943, 15PP.

  • Deposit

    PEARRE,N AND A.HEYL. CHROMITE AND OTHER MINERAL DEPOSITS

  • Deposit

    IN SERPENTINE ROCKS OF THE PIEDMONT UPLAND OF MARYLAND,

  • Deposit

    PENNSYLVANIA, AND DELAWARE. US GEOL.SURVEY BULL, 1082-K,P707

  • Deposit

    REGIONAL PLANNING COUNCIL, BALTIMORE PLANNING COMM.

  • Deposit

    GENERAL DEV. PLAN BALTIMORE REGION, 1972.

  • Deposit

    HUNTER, W.L. & G.V. SULLIVAN. UTILIZATION STUDIES ON

  • Deposit

    CHROMITE FROM SEIAD CREEK, CA. BUMINES R15576,1960,P22

Reporter information

Type Date Name Affiliation Comment
Reporter 21-FEB-95 Dw,Mf,Cp U.S. Bureau of Mines

Beyond USGS

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

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