Calcite
Group of XX up to 4cm long
17x11
Masua, Iglesias, Carbonia-Iglesias. Italy
Specimen n.545

Another photo: entire specimen

Calcite
Giant multiple twinned X (it is 10cm tall), with a very complex shape, without damages; on a mineralized matrix rich in galena
14,5x8
Masua, Iglesias, Carbonia-Iglesias. Italy
Specimen n.828

Calcite
Scalenohedrons, up to 6.5 cm long
7.5x5.5cm
Acquaresi mine, Masua, Iglesias, Carbonia-Iglesias. Italy
Specimen n.1220

Another photo: a bigger view

Calcite
Well defined scalenohedron, 5cm high, covered by iron oxides. The X is surrounded by 2nd generation calcite XX, semitransparent, with a complex shape. This is a Pb/Zn mine, near Masua Town
7.5x5.5cm
Acquaresi mine, Masua, Iglesias, Carbonia-Iglesias. Italy
Specimen n.399

Smithsonite
Yellow botryoidal mass
8.5x5cm
Masua, Iglesias, Carbonia-Iglesias. Italy
Specimen n.657

Smithsonite
Sculptural formation of smithsonite, grown over mineralized rock. It is two color: gray and pale pink
8.5x10cm
Masua, Iglesias, Carbonia-Iglesias. Italy
Specimen n.758