Jahnsite, CaMn2+Mg2(H2O)8Fe3+2(OH)2[PO4]4 : a novel stereoisomerism of ligands about octahedral corner-chains. 1974. Stewartite, Mn2+Fe3+2(OH)2(H2O)6[PO4]2.2H2O : its atomic arrangement. 1974. Palermoite, SrLi2[A14(OH)4(PO4)4] : its atomic arrangement and relationship to Carminite, Pb2[Fe4(OH)4(AsO4)4]. 1975. The Fe2+ 3(H2O)n[PO4]2 homologous series. 2. The crystal structure of Fe2+3(H2O)[PO4]2. 1975. Overite, segelerite and jahnsite : a study in combinatorial polymorphism. 1977.