Figure 9
Na occupancy modulation of eight symmetrically equivalent sites within one anorthite cell of the samples studied in this work. (a) 7147A (An52.5); (b) Volga Blue yellow (An55); (c) 89GM97 (An57); (d) Volga Blue colorless (An59); (e) 11044.p1 (An60); (f) 67796b (An60); (g) Dul-15-6A (An64); (h) SKHHM (An67); (i) 11044.p3 (An68). All samples show density modulation except sample 11044.p3 (An68). |