“These specimens show some unusual fluorescence under longtwave UV. For sake of completeness I add an image under the microscope (see child photo). Coll.: Silvana Cosmi. Photo: Giuliano Bettini. Modified by CombineZP. Ref: Biagioni, C., Orlandi, P., Gini, C., Bargellini, C., Gamucci, C., Marinai, V., Nannoni, R. (2013): Botro ai Marmi. I minerali delle miniere Maffei e Montorsi. Riv. Mineral. Ital., 37, 1 (1-2013), 63-83. ”

“Red fluorescing titanite as seen under the microscope. The specimen is shown under visible (left) and long-wave UV light (right). Coll.: Silvana Cosmi. Photo: Giuliano Bettini. Modified by CombineZP. Ref: Biagioni, C., Orlandi, P., Gini, C., Bargellini, C., Gamucci, C., Marinai, V., Nannoni, R. (2013): Botro ai Marmi. I minerali delle miniere Maffei e Montorsi. Riv. Mineral. Ital., 37, 1 (1-2013), 63-83. ”