Al0.735Ca0.24Na0.26O4Si1.265
FitzGerald, J. D.Parise, J. B.Mackinnon, I. D. R.
American Mineralogist (1986) 71, 1399-1408
a=8.179Å b=12.880Å c=7.112Å
α=93.44° β=116.21° γ=90.23°