Altisite
Ferraris G, Ivaldi G, Khomyakov A P
European Journal of Mineralogy 7 (1995) 537-546
Altisite Na3K6Ti2[Al2Si8O26]Cl3 a new hyperalkaline
aluminosilicate from Kola Peninsula (Russia) related to
lemoynite: crystal structure and thermal evolution
Sample: RT, T = 20 C, before heating
Locality: Kola Peninsula, Russia
_database_code_amcsd 0006594
10.363 16.310 9.132 90 105.34 90 C2/m
atom      x      y      z  occ  Uiso
K1   .20736 .14143 .10725  .95 .0176
Na1  .20736 .14143 .10725  .05 .0176
K2    .0992  .0081  .3636 .425  .036
Na2   .0992  .0081  .3636 .075  .036
Na1       0 .38349    1/2      .0143
Na2       0    1/2      0      .0329
Ti      1/4    1/4    1/2      .0046
Si1  .72539 .09782 .26426      .0059
Si2  .94853 .21292 .27675      .0063
Al        0 .31610      0      .0069
O1    .8755 .12217  .2527      .0115
O2    .6906 .14466  .4031      .0107
O3    .6219 .11684  .1022      .0122
O4    .7308      0  .2970      .0120
O5    .8684 .26948  .3691      .0087
O6    .9285 .25297  .1096      .0125
O7    .1045 .19446  .3543      .0117
Cl1       0      0      0      .0209
Cl2  .11781    1/2 .72409      .0206