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  3. Mineral Resource Data System (MRDS)

Silleda

Occurrence in Galicia, Spain with commodities Tungsten, Tin
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10055809
MRDS ID SP00007
Record type Site
Current site name Silleda

Geographic coordinates

Geographic coordinates: -8.54808, 42.86589 (WGS84)
Relative position MINE IS ABOUT 40 KM SOUTHWEST OF SANTIAGO DE COMPOSTELA

Site location context

Political divisions (FIPS codes)

Galicia(province)

Spain(country)

Europe(continent)

Land(continent)

Geographic areas

Country State
Spain Galicia

Comments on the location information

  • POINT OF REFERENCE IS LOCATION OF SANTIAGO DE COMPOSTELA. AREA IS 121 HECTARES (1945)

Commodities

Commodity Importance
Tungsten Critical Primary
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore
Wolframite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -8.54808, 42.86589
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Quartz Veins In Late Paleozoic Granitic Intrusion

Comments on the geologic information

  • INDIVIDUAL QUARTZ VEINS AVERAGE 40 TO 50 CM WIDE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Year of first production 1917

Ownership information

  • Type Owner-Operator
    Owner Estanifera De Silleda

Comments on the production information

  • PRODUCTION CAPACITY ESTIMATED 75,000 MT/YR OF ORE TO YIELD 364 MT/YEAR OF CONCENTRATES.

Reserves and resources

  • Type In-situ
    Estimate year 1971
    Total resources 1060000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.37 wt-pct Tungsten Major 1971

Comments on the reserve resource information

  • "R" DENOTES IN SITU RESOURCES - QUANTITIES OF ECONOMIC INTEREST FOR THE NEXT FEW DECADES. "1" DENOTES KNOWN DEPOSITS WITH RELIABLE ESTIMATES. "S" DENOTES SUBECONOMIC. SALEABLE CONTENT OF THE TWO 1971 RESERVES AND RESOURCES GIVEN AS 9,100 MT OF WOLFRAMITE; GRADE OF ORE CALCULATED ACCORDING TO THIS FIGURE.

Comments on development

  • YEAR OF FIRST PRODUCTION WAS PRE 1917, PARTICULARLY TIN. MINE FORMERLY OPERATED BY FERNANDO CORT BOERTI.

Reference information

Bibliographic references

  • Deposit

    UNITED STATES, BUREAU OF MINES, ECONOMICS AND STATISTICS BRANCH, 1945, MINERAL RESOURCES OF SPAIN, FOREGIN MINERALS SURVEY, VOL. 2, NO. 1, P. 22.. . SPAIN, MINISTERIO DE INDUSTRIA, DIRECCION GENERAL DE MINAS, 1971, PROGRAMA NACIONAL DE EXPLOTACION MINERA-MINERIA DE MINERALES METALICOS VARIOS, VOL. 21, 1971, 300 P.. . SPAIN, MINISTERIO DE INDUSTRIA, DIRECCION GENERAL DE MINAS, 1971, PLAN NACIONAL DE LA MINERIA, EDICION RESUMIDA, VOL. II, P. 104-107.. . ROSKILL INFORMATION SERVICES LTD., 1977, THE ECONOMICS OF TUNGSTEN: THIRD EDITION, LONDON, ROSKILL INFORMATION SERVICES LTD., P. 164

  • Reserve-Resource

    INTERNATIONAL STRATEGIC MINERALS INVENTORY RECORD W086

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1985 Sinclair W. David Geological Survey of Canada

Beyond USGS

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

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