AlKO4Si
Cellai, D.Gesing, T. M.Wruck, B.Carpenter, M. A.
American Mineralogist (1999) 84, 1950-1955
a=5.1627Å b=5.1627Å c=8.706Å
α=90° β=90° γ=120°
Cellai, D.Bonazzi, P.Carpenter, M. A.
American Mineralogist (1997) 82, 276-279
a=5.157Å b=5.157Å c=8.706Å