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  3. Mineral Resource Data System (MRDS)

Blackdene Mill & Mine

Plant in United Kingdom with commodities Fluorine-Fluorite, Lead
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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. Mineral rights holdings
  11. Ownership information
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10207090
MAS/MILS ID 4120100020
Record type Site
Current site name Blackdene Mill & Mine
Alternate or previous names Minworth - Blackdene Operations

Geographic coordinates

Point of reference Plant
Geographic coordinates: -2.13082, 54.799 (WGS84)
Location accuracy 10000(meters)

Site location context

Political divisions (FIPS codes)

United Kingdom(country)

Europe(continent)

Land(continent)

Geographic areas

Country
United Kingdom

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Lead Secondary

Materials information

Materials Type of material
Fluorite Unknown
Lead Unknown

Nearby scientific data

Plant (1) -2.13082, 54.799
ListMap

Economic information

Ore body information

  • Thickness 100M
    Length 1500M
    Width 3M
    Field Value
    MAS Matrix # 4
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 STRATIFORM
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 UNKNOWN
    Date of Last Modification 850826

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Both
Significant No
Mining method Shrinkage Methods
Year of first production 1978
Plant subcategory Flotation
Milling method Flotation

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner
    Owner Sherburn Stone Co., Ltd.
    Interest 100
    Home office United Kingdom
    Year 1991

Comments on the ownership information

  • MINWORTH GROUP DECLARED BANDRUPTCY IN JAN., 1991. SHERBURN STONE PLANS TO MAINTAIN PREVIOUS LEVELS OF PRODUCTION. MINWORTH LTD. ACQUIRED SAMUK AND BRITISH STEEL IN 1982.

Comments on the production information

  • THIS AREA WAS DEVELOPED IN THE 18TH CENTURY AS AN IMPORTANT LEAD AND IRON MINING DISTRICT.

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Indicated 2278000mt ore
    Demonstrated 2278000mt ore
    Total resources 2278000mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite CaF2 58 wt-pct Fluorine Major 1984

Comments on the reserve resource information

  • RESERVE ESTIMATE BY MINWORTH MANAGEMENT.
  • ACID GRADE FLUORSPAR AND LEAD

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method SHRINKAGE METHODS
    Percent Recovery 100
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    1st Condition of Workings UNKNOWN
    Capacity 540
    Capacity Units MT ORE/DAY
    Unit Production Cost 29.75
    Units of Production $/MT ORE
    Operating Days per Year 144
    Operating Shifts per Day 1
    Year of Information 1982

Comments on other economic factors

  • ACID GRADE FLUORSPAR CONCENTRATE IS PREDOMINANTLY SOLD TO CHEMICAL AND CERAMIC CUSTOMERS. THE MAJORITY IS CONSUMED BY NEWCASTLE METROPOLITAN INDUSTRIES. LEAD CONCENTRATES ARE ASSUMED TO BE SENT TO THE SMELTER AT ANTWERP, BELGIUM.
  • THREE UNDERGROUND MINES COMPRISE THIS DATA SET, BLACKDENE MINE, WHITEHEAPS MINE AND REDBURN MINE.
  • ORE TREATED AT THE BLACKDENE MILL COMES ONE-THIRD FROM THE BLACKDENE MINE, ONE-THIRD FROM WHITEHEAPS, AND THE REST FROM THE REDBURN MINE AND NUMEROUS TRIBUTOR DUMPS OF THE BLANCHLAND AREA.

Reference information

Bibliographic references

  • Deposit

    GREENWOOD, D. A., FLUORSPAR MINING IN THE NORTHERN PENNINES,

  • Deposit

    INSTITUTE OF MINING AND METALLURGY, TRANSACTIONS, SECT. B,

  • Deposit

    NOV. 1979, P. B181-B189.

  • Deposit

    BLUNDEN, J., THE MINERAL RESOURCES OF BRITAIN. A STUDY IN

  • Deposit

    EXPLOITATION AND PLANNING, HUTCHISON AND COMPANY, LONDON,

  • Deposit

    1975.

  • Deposit

    SPOONER, J., MINING ANNUAL REVIEW, MINING JOURNAL, LONDON,

  • Deposit

    JUNE 1978, P. 533.

  • Deposit

    STAFF, 1978 ENGINEERING AND MINING JOURNAL INTERNATIONAL

  • Deposit

    DIRECTORY OF MINING AND MINERAL PROCESSING OPERATIONS,

  • Deposit

    MCGRAW-HILL, NEW YORK, 1978, P. 283.

  • Deposit

    INTERNAL MEMORANDUM, WEARDALE HOLDINGS, LTD. FROM SIR

  • Deposit

    KINGSLEY DUNHAM, DIRECTOR (FORWARD PLANNING), UNDATED.

Comments on the references

  • FULTON, ROBERT B. MINE/MILL/DEPOSIT REPORT. "BROADWOOD/BLACKDENE". SEPT., 1991.

General comments

Subject category Comment text
Deposit DATA CONTAINED IN THIS FILE WAS COLLECTED BY DAMES & MOORE UNDER U.S. BUREAU OF MINES CONTRACT #JO225010 IN 1983.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-DEC-94 Kilgore, Catherine C. 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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