Gotzenite
Bellezza M, Merlino S, Perchiazzi N
European Journal of Mineralogy 16 (2004) 957-969
Chemical and structural study of the Zr,Ti-disilicates in the venanzite
from Pian di Celle, Umbria, Italy
Locality: Pian di Celle, Umbria, Italy
_database_code_amcsd 0007084
9.636 7.341 5.737 89.94 100.74 101.06 P-1
atom     x     y     z occ Uiso
Ca1  .6322 .9096 .2218 .86 .013
Zr1  .6322 .9096 .2218 .14 .013
Ca2  .6345 .4078 .2194     .011
Ca3  .9935 .2421 .4960 .68 .018
Na3  .9935 .2421 .4960 .32 .018
Ca4      0    .5     0 .58 .025
Na4      0    .5     0 .42 .025
Ti5      0     0     0 .98 .018
Si1  .7179 .6529 .7478     .012
Si2  .7229 .2132 .7510     .016
O1   .7592 .4424 .7899     .024
O2   .6147 .6689 .9339     .017
O3   .6181 .1407 .9314     .016
O4   .6467 .6648 .4764     .021
O5   .6706 .1664 .4755     .027
O6   .8791 .7806 .8184     .022
O7   .8848 .1722 .8307     .023
F1   .8888 .4757 .3059     .019
F2   .8856 .9688 .2635     .028