What kind of calcite? Disclosing the origin of sparry calcite temper in ancient ceramics Paolo Vedovetto, Angeliki Kapatza, Manuel Rigo, Giovanna Ganzarolli, Chiara Coletti, Claudio Mazzoli, Alexandra Chavarria Arnau, Lorenzo Lazzarini, K. Bajnok, L. Maritan, F. Antonelli • 2021