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Nuno Afonso's Photo Gallery

CVJ-XQFStrunzite : Mn2+Fe3+2(PO4)2(OH)2·6H2O, Phosphosiderite : FePO4·2H2O

Multiple photos available
Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda District, Portugal

A close-up of strunzite
Copyright: © nuno afonso      Photo ID: 135224     Uploaded by: Nuno Afonso   View Count: 444   Approval status: Public galleries    Type: Photo - 650 x 526 pixels (0.3 Mpix)

X5F-M50Willemite : Zn2SiO4, Cerussite : PbCO3

Preguiça Mine, Sobral da Adiça, Moura, Beja District, Portugal

Largest Crystal Size: 11 mm

This sample shows a pseudomorph of willemite after cerussite.
Cerussite crystals up to 11 mm.
Copyright: © nuno afonso      Photo ID: 135220     Uploaded by: Nuno Afonso   View Count: 448   Approval status: Public galleries    Type: Photo - 700 x 566 pixels (0.4 Mpix)

6TD-YVCPyrolusite : Mn4+O2

Serra da Mina Mine, Cercal, Santiago do Cacém, Setúbal District, Portugal

A group of pyrolusite clusters.
Clusters size: ~6mm.
Copyright: © nuno afonso      Photo ID: 135219     Uploaded by: Nuno Afonso   View Count: 405   Approval status: Public galleries    Type: Photo - 650 x 529 pixels (0.3 Mpix)

GFC-AK4Pyrolusite : Mn4+O2, Quartz : SiO2

Serra da Mina Mine, Cercal, Santiago do Cacém, Setúbal District, Portugal

Dimensions: 28 mm

A group of quartz micro-crystals growing over pyrolusite clusters.
Specimen size: 28 mm.
Copyright: © nuno afonso      Photo ID: 135218     Uploaded by: Nuno Afonso   View Count: 429   Approval status: Public galleries    Type: Photo - 650 x 439 pixels (0.3 Mpix)

1Q8-108Quartz : SiO2, Pyrite : FeS2, Carminite : PbFe3+2(AsO4)2(OH)2

Alto das Quelhas do Gestoso Mine, Gestoso, Manhouce, São Pedro do Sul, Viseu District, Portugal

Largest Crystal Size: 7 mm

Quartz crystals growing on pyrite crystals. We also can see some carminite and scorodite. Pyrite crystal measures 7 mm.
Copyright: © nuno afonso      Photo ID: 135216     Uploaded by: Nuno Afonso   View Count: 550   Approval status: Public galleries    Type: Photo - 700 x 546 pixels (0.4 Mpix)

VN3-23KNatrolite : Na2Al2Si3O10·2H2O, Thomsonite

Lomba dos Pianos quarry, Magoito, São João das Lampas, Sintra, Lisbon District, Portugal

A sample of natrolite (the orange radial terminations) and thomsonite (the centers), measuring 58mm.
Copyright: © nuno afonso      Photo ID: 135212     Uploaded by: Nuno Afonso   View Count: 392   Approval status: Public galleries    Type: Photo - 650 x 449 pixels (0.3 Mpix)

EXY-QHPWavellite : Al3(PO4)2(OH,F)3·5H2O, Natrodufrénite : NaFe2+Fe3+5(PO4)4(OH)6·2H2O

Multiple photos available
Rebentão Mine, Lagares do Estanho Mines, Queiriga, Vila Nova de Paiva, Viseu District, Portugal

Largest Crystal Size: 1 mm

Small crystals of wavellite and natrodufrénite on albite.
Crystals up to 1 mm.
Copyright: © nuno afonso      Photo ID: 135209     Uploaded by: Nuno Afonso   View Count: 542   Approval status: Public galleries    Type: Photo - 700 x 575 pixels (0.4 Mpix)

07V-EXUMolybdenite : MoS2

Cubos-Mesquitela-Mangualde area, Mangualde, Viseu District, Portugal

Dimensions: 55 mm

Molybdenite on quartz. The sample was found near the train station at Mangualde.
Specimen size: 55 mm.
Copyright: © nuno afonso      Photo ID: 135206     Uploaded by: Nuno Afonso   View Count: 487   Approval status: Public galleries    Type: Photo - 650 x 537 pixels (0.3 Mpix)

JHR-4CDGoethite : α-Fe3+O(OH)

Serra da Mina Mine, Cercal, Santiago do Cacém, Setúbal District, Portugal

Goethite specimen measuring: 61mm.
Copyright: © nuno afonso      Photo ID: 135202     Uploaded by: Nuno Afonso   View Count: 565   Approval status: Public galleries    Type: Photo - 700 x 542 pixels (0.4 Mpix)

U5P-G25Calcite : CaCO3, Willemite : Zn2SiO4

Preguiça Mine, Sobral da Adiça, Moura, Beja District, Portugal

Dimensions: 48 mm

Calcite and small willemite crystals on goethite.
Specimen size: 48 mm.
Copyright: © nuno afonso      Photo ID: 135201     Uploaded by: Nuno Afonso   View Count: 371   Approval status: Public galleries    Type: Photo - 650 x 554 pixels (0.4 Mpix)
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