Mine detail: Borralha Mines

Previously called 'Borralha Mines Couto Mineiro Da Borralha 35 Concessions16 Other Concessions, Including At One Time, Borrageira,Outeiro Das Devesas, Picoto, Toncal, and Vale Do Forno'

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Location

Lat / long: 41.68256, -7.81478

Resource(M)

Primary: Tungsten, Copper, Silver
Ore: Chalcopyrite, Galena, Scheelite, Wolframite
Gangue: Albite, Apatite, Bismuthinite, Molybdenite, Muscovite, Pyrite, Quartz, Tourmaline
Discovery year: 1905

Production

Operation type: Unknown
Production size: None
Development status: Occurrence
First production started: 1914
Last production ended: 1985

Geology

Host type:Quartzite,Granite
Associated type:Granite
Tectonic:Paleozoic Orogenic Belt

References

MRDSSP00005
DEP10055807
Reference{Deposit:: SMITH, A., 1979, THE MINING OF TUNGSTEN, IN MINING JOURNAL BOOKS, LTD., TUNGSTEN: PROCEEDINGS OF THE FIRST INTERNATIONAL TUNGSTEN SYMPOSIUM, STOCKHOLM, P. 34, 56..}{Deposit:: BUNDESANSTALT FUR GEOWISSENSCHAFTEN UND ROHSTOFFE, HANNOVER, 1977, UNTERSUCHUNGEN UBER MINERALISCHER ROHSTOFFE: IX WOLFRAM, P. 9..}{Deposit:: UNITED STATES BUREAU OF MINES, 1951, MINERAL TRADE NOTES, NO. 5, P. 32-34..}{Deposit:: STAFF, 1979, TUNGSTEN/MINAS DA BORRALHA, MINING JOURNAL, VOL. 292, NO. 7491, MARCH 16, 1979, P. 202..}{Deposit:: CONDE, L. N., PEREIRA, V., RIBEIRO, A., AND THADEU, D., 1971, JAZIGOS HIPOGENICOS DE ESTANHO E VOLFRAMIO; LIVRO-GUIA EXCURSAO NO. 7, I CHLAGE, MADRID-LISBOA, LISBOA, P. 47-54..}{Deposit:: REYNAUD, R., 1982, PRODUCTION AND MARKETING OF PORTUGUESE TUNGSTEN ORES IN PORTUGAL - EUROPEAN COMMUNITIES, EUROPEAN TUNGSTEN SEMINAR, LISBON, MARCH 22-24, 1982, 24 P..}{Deposit:: GOINHAS, J. AND VIEGAS, L., 1980, PROVINCIA METALOGENETICA ESTANIFERA E TUNGSTENICA, IBERICA, ESTUDOS, NOTAS E TRABALHOS DE SERVICO DO FOMENTO MINEIRO, VOL. XXV, NOS. 3-4, 178 P..}{Deposit:: ANSTETT, T. F., BLEIWAS, D. I., AND HURDELBRINK, R. J., 1985, TUNGSTEN AVAILABILITY - MARKET ECONOMY COUNTRIES, U. S. BUREAU OF MINES, INFORMATION CIRCULAR 9025, 51 P..}{Deposit:: CHARTER CONSOLIDATED P.L.C., ANNUAL REPORTS.}{Production:: INTERNATIONAL STRATEGIC MINERALS INVENTORY RECORD W081}
ReporterPasitschniak Anna; Sinclair W. David