Citation: Callegari, A. M.; Boiocchi, M.; Ciriotti, M. E.; Balestra, C. (2012). Coralloite, Mn2+Mn3+2(AsO4)2(OH)2*4H2O, a new mixed valence Mn hydrate arsenate: crystal structure and relationships with bermanite and whitmoreite mineral groups. American Mineralogist, 97, pp. 727-734.