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: HT, T = 700 C Locality: Kola Peninsula, Russia _database_code_amcsd 0006595 10.423 16.333 9.160 90 105.62 90 C2/m atom x y z occ Uiso K1 .2052 .14147 .1066 .95 .0563 Na1 .2052 .14147 .1066 .05 .0563 K2 .1028 .0151 .3665 .425 .086 Na2 .1028 .0151 .3665 .075 .086 Na1 0 .3847 1/2 .0465 Na2 0 1/2 0 .081 Ti 1/4 1/4 1/2 .0148 Si1 .72627 .09803 .26440 .0164 Si2 .94619 .21412 .27537 .0173 Al 0 .31552 0 .0191 O1 .8749 .1234 .2520 .0292 O2 .6946 .1428 .4065 .0303 O3 .6209 .1183 .1052 .0343 O4 .7319 0 .2918 .032 O5 .8649 .2703 .3657 .0260 O6 .9276 .2530 .1086 .0355 O7 .1013 .1972 .3549 .0341 Cl1 0 0 0 .078 Cl2 .1212 1/2 .7282 .0694