AM_Wairakite_1 Formula: (Ca.959 Na.041) Si4 Al2 O13.82 H2.04 Name: Wairakite Unit cell: 13.666 13.623 13.531 90.0 90.5 90.0 , V=2519.00 Space group: I12/A1 (15)

Seryotkin Y V , Joswig W , Bakakin V V , Belitsky I A , Fursenko B A , European Journal of Mineralogy , 15 (2003) p.475-484, High-temperature crystal structure of wairakite, Sample: Wai-20, T = 20 deg C