Petalite
Ross N L, Zhao J, Slebodnick C, Spencer E C, Chakoumakos B C
American Mineralogist 100 (2015) 714-721
Petalite under pressure: Elastic behavior and phase stability
Note: P = 1.25 GPa
Locality: Aracuai pegmatite district, Minas Gerais, Brazil
_database_code_amcsd 0020427
11.1425 5.0723 11.6092 90 141.074 90 P2/c
atom     x      y     z  Uiso
Li1     .5   .755   .25  .021
Al1     .5  .2544   .25 .0097
Si1  .7899  .0246 .7921 .0097
Si2  .7900  .5224 .6424 .0116
O1   .6339 -.0320 .7730 .0187
O2   .7678 -.1773 .6689 .0145
O3       0      0     0  .036
O4   .7569  .3231 .7221 .0217
O5       0  .4726   .75  .030
O6   .6344  .4775 .4279 .0150