AM_Altisite Formula: K5.5 Na3.5 Ti2 Si8 Al2 O26 Cl3 Name: Altisite Unit cell: 10.363 16.31 9.132 90.0 105.34 90.0 , V=1488.51 Space group: C12/M1 (12)

Ferraris G , Ivaldi G , Khomyakov A P , European Journal of Mineralogy , 7 (1995) p.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