Narsarsukite
Peacor D R, Buerger M J
American Mineralogist 47 (1962) 539-556
The determination and refinement of the structure of narsarsukite, Na2TiOSi4O10
_database_code_amcsd 0000113
10.7269 10.7269 7.9476 90 90 90 I4/m
atom     x     y     z Biso
Ti       0     0 .2396 .130
Na   .1858 .1378    .5 1.38
Si   .0118 .3085 .1924 -.09
O1       0     0     0  .05
O2       0     0    .5  .20
O3   -.040 .3024     0  .17
O4   .0488 .1754 .2684  .37
O5   .1324 .4023 .1938  .32