Fibroferrite from Le Cetine di Cotorniano mine, Italy

Fibroferrite from Le Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy

Nice little thumbnail specimen of Fibroferrite from Le Cetine di Cotorniano mine, Italy.

Comes boxed with our ID label and a former owners label.

Quite a rare locale, and quite a rare mineral - hopefully this specimen will appeal to collectors of Italian minerals.