Groups of autunite tabular crystals with an intense and characteristic yellow color, brilliance, transparent, some of them growing epitaxial on torbernite (metatorbernite). They are disposed covering cavities of a matrix of goethite. An old specimen from a classic Portuguese locality.

Size: 7.3 x 6.8 x 4.5 cm.
Found in 1980's.

Fluorescent under LWUV and SWUV
Presents radioactive activity.

Excellent combo formed by a group of ferberite crystals with parallel growths, with an intense black color and good brightness, peppered by lenticular siderite crystals. They are supported by a hyaline quartz crystal partially covered by muscovite. Note that quartz has a small dent on one of the faces of the terminal rhombohedra, without affecting the aesthetics of the sample. Arsenopyrite has grown on the ferberite. A specimen with a superb aesthetics, from a classic locality like Panasqueira.

Size: 6,0 x 5,5 x 3,5 cm.

Group of very sharp fluorapatite crystals showing defined prism faces and hexagonal dipyramids. Good transparence, color between green to greyish, depending on light. Very aesthetically disposed on a matrix of muscovite hexagonal rosettes, with white dolomite. Also with some cyclic twinned marcasite crystals, very brilliant and defined. Take a look under magnication lens. An excellent specimen from this Portuguese classic mine.

Size: 6,2 x 5,0 x 3,5 cm.
Main crystal: 17 x 15 mm.

Fluorescent under long wave UV