H13MgO9P
Powell, D. R.Smith, S. K.Ross, F. K.Farrar, T. C.
Acta Crystallographica Section C (1994) 50, 3 342-346
a=8.8281(11)Å b=8.8281(11)Å c=9.104(2)Å
α=90° β=90° γ=120°
a=8.868(2)Å b=8.868(2)Å c=9.150(2)Å