Figure 1
(a) A view of CsAl(H2AsO4)2(HAsO4) along [100]. Decorated kröhnkite-like chains run parallel to [100] and are connected through five different hydrogen bonds. The unit cell is outlined. (b) A view of CsGa(H1.5AsO4)2(H2AsO4) (Schwendtner & Kolitsch, 2005a) along [100]. The main difference in comparison with (a) can be seen in the hydrogen bonds, the slight tilting of the AsO4 tetrahedra and the location of the Cs atoms. |