Search Results - "Franca Caucia"

Evaluation of the Gemological Properties of Datolites from the Campotrera Deposit in the Northern Apennines (Italy) by Luigi Marinoni, Franca Caucia, Mattia Gilio, Maurizio Scacchetti

“…This work investigates the gemological properties of the datolite from the famous field of Campotrera near Reggio Emilia in Italy, for a possible commercial…”
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Black Quartz from the Burano Formation (Val Secchia, Italy): An Unusual Gem by Franca Caucia, Maurizio Scacchetti, Luigi Marinoni, Mattia Gilio

“…The Burano Formation in Val Secchia in the province of Reggio Emilia is rich in black or very dark quartz. The crystals are often pitted by scars, rarely…”
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Investigation on the gemological, physical and compositional properties of some green opals from Eastern Rhodopes, Bulgaria by Caucia, Franca, Marinoni, Luigi, Bruni, Giovanna

“…The physical and compositional properties of some common opals from Eastern Rhodopes, Bulgaria have been investigated through several methodologies such as…”
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The Vesuvianite Gems of the Val d’Ala (Piedmont, Italy) by Franca Piera Caucia, Luigi Marinoni, Maurizio Scacchetti, Maria Pia Riccardi, Omar Bartoli

“…In Val d’Ala (Western Alps in Piedmont, Italy), the most interesting rocks for mineralogical research are represented by rodingite (rich in mineralized veins…”
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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

“…This study proposes new data on the rare pyroxene, variety violane, sampled from its type locality, Praborna manganese deposit, near Saint Marcel (Val d’Aosta,…”
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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

“…In this work a rare and attractive blue diopside present in Sissone valley in the Western Alps was investigated through different methodologies: geological…”
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