Mineral: Cervandonite-(Ce)
Locality: Monte Cervandone, Devero Alp, Baceno, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont (Piemonte), Italy
Dimensions: 9 x 5.5 x 5 cm / main crystal: 1 cm

Description: Mass: 233 g MIM number: 2266 1 cm wide tuft of black cervandonite rosettes, developed on an orthogneiss matrix. This is one of the largest known tufts of this very rare silicate-arsenate. Photographer: AINU / Augustin de Valence; Ex collection: Enzo Sartori (Italy)

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