Calcite
Rounded formation of yellow calcite, in a cavity of the volcanic rock, typical shape from this locality
7x4.2cm
Montalto di Castro, Viterbo. Italy
Specimen n.1166

Gismondine
Carpet of XX, up to 0.2cm long. From a well known quarry opened in lava deposit
6x4cm
Fosso dell'Osa quarry, Tivoli, Roma. Italy
Specimen n.664

Another photo: entire piece

Ludwigite
Group of XX, up to 1.5 cm long, in a geode of the rock 6x3cm wide
10x7.5cm
Pozzolana quarry, Corcolle, Roma. Italy
Specimen n.771

Another photo: a bigger view
Another photo: entire piece

Leucite
Single white X 1.9cm wide, in lava
4x2.5cm
Roccamonfina, Caserta. Italy
Specimen n.132

Fluorite
Cubic XX, with clear phantoms, max edge 2.4cm
13x9.5cm
Poggio Balate, Termini Imerese, Palermo. Italy
Specimen n.467