text: Synthetic zeolites have complex structures and examples (with structural formulae) are:
  * NaAlSiO·27HO, zeolite A (Linde type A sodium form, NaA), used in laundry detergents
  * NaAlSiO·16HO, Analcime, IUPAC code ANA
  * NaAlSiO·q HO, Losod
  * NaAlSiO·518HO, Linde type N