Sillimanite - Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Italy - 50 x 39 mm
Mineral: Sillimanite
Locality: Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont (Piemonte), Italy
Dimensions: 50 x 39 mm

Description: The crystal size is 40 mm.