Slaymaker Chrome Sand Property

Past Producer in Lancaster county in Pennsylvania, United States with commodity Chromium

Geologic information

Identification information

Deposit ID 10275167
MAS/MILS ID 0420710001
Record type Site
Current site name Slaymaker Chrome Sand Property

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -76.17074, 39.73722 (WGS84)
Elevation 91
Location accuracy 100(meters)
(click for info)

Geographic areas

Country State County
United States Pennsylvania Lancaster

Commodities

Commodity Importance
Chromium Primary

Materials information

Materials Type of material
Chromite Unknown

Nearby scientific data

Ore Body (1) -76.17074, 39.73722

Ore body information

  • Thickness 0.7M
    Depth to top 0M
    Width 27M
    Length 2065M
    Area 2HA
    Field Value
    Type of Orebody #1 PLACER
    Shape of Orebody #1 TABULAR
    Primary mode of Origin RESIDUAL CONCENT
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .7
    Total Surface Area (HA) 2
    Date of Last Modification 820616

Comments on the geologic information

  • SUBSEQUENT WEATHERING HAS FREED FINELY DIVIDED CHROMITE THROUGH DISINTEGRATION OF THE SERPENTINES THE CHROM S ACCUMULATED AS MINABLE SAND AND GRAVEL PLACERS THERE ARE NO CHROMITE ANALYSES FOR THIS DEPOSIT AREA CHROMIT GESTED FOR CHEMICAL USE

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Alluvial Mining
Milling method Electrostatic

Mining district

District name State Line District

Mineral rights holdings

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

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner S. R Slaymaker
    Interest 100
    Home office Pennsylvania
    Year 1943

Comments on the ownership information

  • OWNERSHIP DATA IS FROM WAR MINERALS REPORT JULY, 1943. OWNER: S.R. SLAYMAKER.

Reserves and resources

  • Type In-situ
    Estimate year 1979
    Demonstrated 53,100mt ore
    Indicated 53,100mt ore
    Total resources 53,100mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 1.45 wt-pct Chromium Major 1979

Comments on the reserve resource information

  • Q MATRIX REFLECTS TONNAGE & GRADE DERIVED FROM THE WASHED SAMPLE REPORTED IN R MATRIX. M9C4 = M1C1.

Workings at the site

  • Type of workings Surface
    Area 2HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .8
    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 2.7
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 1
    Year of Information 1978

Comments on other economic factors

  • THE CUSTOM MILL WOULD BE LOCATED ON THE WEST PLACER CHROMITE DEPOSIT NEAR OAKWOOD, MARYLAND.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0420710001

Bibliographic references

  • Reserve-Resource

    JERMAIN G CONFIDENTIAL WAR MINERALS REPORT SLAYMAKER

  • Reserve-Resource

    CHROME SAND PROPERTY REGIONAL FILE NO. 545, 1943

  • Deposit

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

  • Deposit

    CHROMITE FROM SEIAD CREEK, CALIF." R.I. 5576.

Reporter information

Type Date Name Affiliation Comment
Reporter 24-APR-95 Pk-Mf-Cpm U.S. Bureau of Mines