New Insights for Gem-Quality Mn-Bearing Diopside-Omphacite, Violane Variety, from Saint Marcel (Val D’Aosta, Italy): Its Trace Elements and Spectroscopic Characterization

by Valeria Diella, Rosangela Bocchio, Franca Caucia, Nicoletta Marinoni, Antonio Langone, Elena Possenti
Published 2021-02-01

An Attractive Blue Diopside from Sissone Valley, Western Alps, Italy

by Franca Caucia, Maurizio Scacchetti, Luigi Marinoni, Mattia Gilio, Antonio Langone, Omar Bartoli, Marco Vanotti, Ivano Foianini
Published 2021-08-01