Thin needle like Carbonate-cyanotrichite crystals disposed as a velvet layer and as radial aggregates on a matrix with cubic colorless Fluorite crystals. These aggregates show a intense blue sky color, deep in the core.

Size: 4.5 x 4.0 x 3.7 cm
Main crystal: 3 mm (aggr)
Found in 2009

Thin needle like Carbonate-cyanotrichite crystals disposed as radial aggregates on a matrix partially covered by cubic colorless Fluorite crystals. These aggregates show a intense blue sky color, deep in the core. Really good specimen.

Size: 6,5 x 4,0 x 3,5 cm
Main crystal: 3 mm (aggr)
Found in 2009

Group of small, shiny, gray metallic blades of flattened Chalcostibite crystals, some of them very aerial disposed. Accompanied by brilliant Tetrahedrite and Quartz. Chalcostibite was uncommon at Cavnic mine till 90's finding.

Size: 8.5 x 6.7 x 4.1 cm
Main crystal: 3 x 1 mm

Group of Sigloite crystals pseudomorph after Paravauxite, partially covering the rocky matrix. Paravauxite and sigloite differ chemically by the presence of a single water molecule. Sigloite is white to yellowish. The Siglo XX Mine is the type locality for Sigloite species.

Size: 5.5 x 3.5 x 2.5 cm
Main crystal: 9 x 2 mm

Fluorescent under long wave UV

Three prismatic Topaz crystals with well defined faces and edges, very transparent and showing a delicate and uniform pinkish tone. Very fluorescent. Implanted on a Quartz crystal matrix.

Size: 5,0 x 3,6 x 2,4 cm.
Main crystal: 5 x 4 mm (group)
Found in 11/2008

Fluorescent under long wave UV

A very rich marcasite specimen covered by a layer of small but very sharp and brilliant crystals, with metallic reflections between gold and greenish tones, with iridescence.

These marcasite crystals show tabular forms and the Sperkise twin (from the German Speerkies –Speer: spear and Kies: rock-. It has been used as a synonym for marcasite specimens). This twin is characterized by being formed by 4 or 5 crystals cyclically disposed around a central axis parallel to c.

Size: 4,2 x 5,5 x 9,3 cm
Main crystal: 1,5 x 1,5 mm
Found in 02/2011