Citation: Kolitsch, U.; Fleck, M. (2006). Third update on compounds with krohnkite-type chains: the crystal structure of wendwilsonite [Ca2Mg(AsO4)2*2H2O] and the new triclinic structure types of synthetic AgSc(CrO4)2*2H2O and M2Cu(Cr2O7)2*2H2O (M = Rb, Cs) Locality: synthetic. European Journal of Mineralogy, 18, pp. 471-482.