Material Name:	Ferrierite
	Chemical Formula:	|Mg2Na2 (H2O)18 | [Al6Si30O72]-FER
	Unit Cell:	orthorhombic	I m m m (# 71)
		a' = 19.1560 Å	b' = 14.1270 Å	c' = 7.4890 Å
		α' = 90.000°	β' = 90.000°	γ' = 90.000°
	Framework Density:	17.8 T/1000 Å3

Channels:

[001] 10 4.2 x 5.4* <-> [010] 8 3.5 x 4.8* Dimensionality   Sorption (molecular cross section > 3.4Å): 2-dimensional   Topological (pore opening > 6-ring): 2-dimensional

	References:
		Vaughan, P.A.
			"The crystal structure of the zeolite ferrierite"
			Acta Crystallogr., 21, 983-990 (1966)

	Name and Code derivation:
		Ferrierite   FER