Citation: Demartin, F.; Gramaccioli, C. M.; Pilati, T.; Sciesa, E. (1996). Sigismundite, (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(OH)2(PO4)12, a new Ba-rich member of the arrojadite group from Spluga Valley, Italy. The Canadian Mineralogist, 34, pp. 827-834.