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Luis Canavarro's Photo Gallery

M3H-4EMManganese Oxides (Var: Manganese Dendrites)

Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal

Specimen size aprox. 8cm larger dimension.
Dendritic "Limonite" over darker manganese oxide dendrite, on a Feldspar matrix. While dendritic manganese oxide is fairly common in place, this esthetical and uncommon ocurrence, with bright contrasting colours is rare.
Photo ID: 366875     Uploaded by: Luis Canavarro   View Count: 379   Approval status: Public galleries    Type: Photo - 1000 x 643 pixels (0.6 Mpix)

PWH-Y0EFluorapatite, Tourmaline, Albite

Corvaceira quarry, Chãs de Tavares, Mangualde, Viseu, Portugal

Group of Fluorapatite crystals, with small acicular Tourmaline over Albite Matrix.
Collected 2008
Maximum size 140 mm
Apatite Crystal max. size 65 mm
Photo ID: 359035     Uploaded by: Luis Canavarro   View Count: 351   Approval status: Public galleries    Type: Photo - 900 x 598 pixels (0.5 Mpix)


Barroca Grande Mine, São Francisco de Assis, Covilhã, Castelo Branco, Portugal

Pseudomorphosis Siderite on Apatite + Arsenopyrite
Panasqueira Mine, Collected 1010
Maximum dimension 65 mm
Photo ID: 359033     Uploaded by: Luis Canavarro   View Count: 223   Approval status: Public galleries    Type: Photo - 635 x 675 pixels (0.4 Mpix)


Infesta Mine, Viariz, Baião, Porto, Portugal

Impressive huge Autunite layer over a microcristaline Apatite (fluorescing in pink)and Feldspar matrix.
Field of view 80 cm.
Image taken August 2010
Photo ID: 358206     Uploaded by: Luis Canavarro   View Count: 232   Approval status: Public galleries    Type: Photo - 1000 x 665 pixels (0.7 Mpix)


Nelas, Viseu, Portugal

Identified on the basis of a chemical analysis showing K, U and S.
The crusts show a green fluorescence.
Collected as a sole specimen over feldspar matrix. Field of view 27 mm.

Collected August 2006. Prospection gallery is now closed.
Photo ID: 357084     Uploaded by: Luis Canavarro   View Count: 358   Approval status: Public galleries    Type: Photo - 2469 x 1776 pixels (4.4 Mpix)
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