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Lapeenranta

Producer in Finland with commodities Wollastonite, Limestone, General
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10023260
MRDS ID I000059
Record type Site
Current site name Lapeenranta
Alternate or previous names Willmanstrand, Ihalainen

Geographic coordinates

Geographic coordinates: 28.25268, 61.06508 (WGS84)
Relative position MINE IS 2 MILES SOUTH OF TOWN OF LAPEENRANTA.

Site location context

Political divisions (FIPS codes)

Finland(country)

Europe(continent)

Land(continent)

Geographic areas

Country
Finland

Commodities

Commodity Importance
Wollastonite Primary
Limestone, General Primary

Materials information

Materials Type of material
Limestone Ore
Wollastonite Ore
Calcite Gangue
Diopside Gangue
Dolomite Gangue
Graphite Gangue
Quartz Gangue

Analytical data

Result WOLLASTONITE IS 51.80% SIO2, 44.5% CAO, AND < 0.3% FE2O3.

Mineral occurrence model information

Model code 65
USGS model code 18g
Deposit model name Skarn wollastonite

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Amphibolite
    Rock unit name Rapakivi Granite
    Rock description Rapakivi Granite
    Stratigraphic age (youngest) Neoarchean
  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) 28.25268, 61.06508
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Economic information

Ore body information

  • Strike N-S
    Dip 60-70E
    Thickness 0.91M

Comments on the geologic information

  • THE LIMESTONE STRIKES NORTH-SOUTH AND DIPS 60-70E. IT IS INTERBEDDED WITH LEPTITE AND AMPHIBOLITE DIKES AND SURROUNDED BY A LARGE MASS OF YOUNGER RAPAKIVI GRANITE.

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Discovery year 1925
Year of first production 1955

Ownership information

  • Type Owner
    Owner Oy Partek Ab

Comments on the production information

  • CAPACITY IN 1990 IS ABOUT 40,000 TPA.

Reserves and resources

  • Type In-situ
    Estimate year 1970
    Total resources 1814000mt ore
    Commodity Subtype Grade units Group Importance Year
    Wollastonite Wol 20 wt-pct Wollastonite Major 1970
  • Type In-situ
    Estimate year 1977
    Total resources 30000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Wollastonite Wol 18 wt-pct Wollastonite Major 1977

Comments on the workings information

  • ORE IS SELECTIVELY MINED FROM A OPEN PIT; SEPARATED BY OPTICAL SORTING; FROTH FLOTATION IS THEN USED TO PRODUCE A CALCITE FLOAT AND A WOLLASTONITE SINK.

Comments on development

  • THE LIMESTONE IS WORKED FOR CEMENT IN TWO QUARRIES, ONE ON EACH SIDE OF THE WOLLASTONITE ZONE. THE WOLLASTONITE ORE IS CRUSHED AND THE CALCITE AND FE-SILICATES REMOVED IN A 2-STAGE FLOTATION PROCESS. WOLLASTONITE HAS BEEN PRODUCED SINCE THE 1950'S; LIMESTONE SINCE THE BEGINNING OF THE CENTURY.

Reference information

Bibliographic references

  • Deposit

    ANDREWS, R.W., 1970, WOLLASTONITE: LONDON, INSTITUTE OF GEOLOGICAL SCIENCES, 114 P.

  • Deposit

    SMITH, MARTIN, 1981, WOLLASTONITE-- PRODUCTION AND CONSUMPTION CONTINUE TO CLIMB: INDUSTRIAL MINERALS, NO. 167, P. 25-30.

  • Deposit

    ISOKANGAS, PAULI, 1978, FINLAND, IN BOWIE, S.H.U., KVALHEIM, A., AND HASLAM, H.W., EDS., MINERAL DEPOSITS OF EUROPE, VOLUME 1: NORTHWEST EUROPE: LONDON, THE INSTITUTION OF MINING AND METALLURGY AND THE MINERALOGICAL SOCIETY, P. 39-92.

  • Deposit

    ELEVATORSKI, E.A., 1975, WOLLASTONITE, IN LEFOND, S.J., ED., INDUSTRIAL MINERALS AND ROCKS (NONMETALLICS OTHER THAN FUELS), 4TH EDITION: NEW YORK, AMERICAN INSTITUTE OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS, P. 1227-1234.

  • Deposit

    HARBEN, P.W., AND BATES, R.L., 1990, WOLLASTONITE, IN INDUSTRIAL MINERALS: GEOLOGY AND WORLD DEPOSITS: LONDON, METAL BULLETIN PLC, P. 299-301

  • Production

    ANDREWS, 1970.

  • Reserve-Resource

    FIRST RESERVE ESTIMATE IS FROM ANDREWS, 1970; SECOND FROM ISONKANGAS, 1978; THIRD FROM HARBEN AND BATES, 1990.

General comments

Subject category Comment text
Deposit Discovery Year: EARLY 1900'S
Deposit GENERAL SHORT-FIBER WOLLASTONITE OCCURS AS A NORTH-SOUTH ZONE THROUGH LIMESTONE AND DIPS CONFORMABLY WITH THE LIMESTONE. WOLLASTONITE ZONE IS APPROXIMATELY 150 FT THICK AND GREATER THAN 2000 FT LONG. THE WOLLASTONITE BEDS ARE 0.5 IN TO 3. FT THICK. WOLLASTONITE AVERAGES 18-20% OF THE LIMESTONE HOST BUT MAY BE AS MUCH AS 60%.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1990 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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