Citation: Pinto, D.; Balic-Zunic T; Garavelli, A.; Garbarino, C.; Makovicky, E.; Vurro, F. (2006). First occurrence of close-to-ideal kirkiite at Vulcano (Aeolian Islands, Italy): chemical data and single-crystal X-ray study. European Journal of Mineralogy, 18, pp. 393-401.