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Urgeiriça mines, Nelas, Viseu District, Portugal


List of minerals arranged by Dana 8th Edition classification
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Autunite40.2a.1.1Ca(UO2)2(PO4)2 · 11H2O
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Phosphuranylite42.4.8.1(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals
Uraninite
var: Pitchblende		-UO2


7 entries listed. 7 valid minerals.

References

- Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 876.

regarding the geology of the Viseu distric:

- Soeng, Y. S. (1958), The geology petrology and ore deposits of the Viseu region, northern Portugal, Comunicações dos serviços geológicos de Portugal, Tomo XLI, Lisboa

regarding the mineral occurrences in these (and other Portuguese uranium mines)

- Frondel, C. (1958), Systematic Mineralogy of Uranium and Thorium, USGS Bulletin 1064 [http://pubs.er.usgs.gov/publication/b1064]

- Lencastre, J. (1964), Contribuição para o estudo dos minerais secundários de urânio portugueses, Comunicações dos serviços geológicos de Portugal, Tomo XLIX, Lisboa

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