Meionite
Lin S B, Burley B J
Tschermaks Mineralogische und Petrographische Mitteilungen 21 (1974) 196-215
The crystal structure of an intermediate scapolite - wernerite
Locality: Tsarasaotra, Madagascar
_database_code_amcsd 0015648
12.1164 12.1164 7.581 90 90 90 P4_2/n
atom     x     y     z  occ Biso
Ca   .3603 .2841 .5126 .522 1.89
Na   .3603 .2841 .5126 .414 1.89
K    .3603 .2841 .5126 .058 1.89
Cl      .5    .5    .5 .365 1.88
C       .5    .5    .5 .435 1.88
S       .5    .5    .5 .185 1.88
Si1  .3390 .4092 .9978 .625  .51
Al1  .3390 .4092 .9978 .362  .51
Si2  .6593 .9155 .7967 .625  .61
Al2  .6593 .9155 .7967 .362  .61
Si3  .4125 .8363 .7103 .625  .57
Al3  .4125 .8363 .7103 .362  .57
O1   .4576 .3503 .0019      1.03
O2   .6902 .8757 .0088      1.13
O3   .3498 .9420 .7947      1.38
O4   .5459 .8472 .7160      1.25
O5   .2677 .3667 .8307      1.45
O6   .3703 .7287 .8256      1.28
O7   .3978 .4793 .4598 .164 4.63
O8   .4007 .4819 .5871 .164 3.99