Material Name:	Wenkite
	Chemical Formula:	|Ba4(Ca,Na2)3 (SO4)3 H2O | [Al8Si12O39(OH)2]--WEN
	Unit Cell:§	hexagonal	P -6 2 m (# 189)
		a' = 13.5110 Å	b' = 13.5110 Å	c' = 7.4620 Å
		α' = 90.000°	β' = 90.000°	γ' = 120.000°
	Framework Density:	17.0 T/1000 Å3

Channels:

<100> 10 2.5 x 4.8** <-> [001] 8 2.3 x 2.7* Dimensionality   Sorption (molecular cross section > 3.4Å): 0-dimensional   Topological (pore opening > 6-ring): 3-dimensional

	References:
		Wenk, H.-R.
			"The structure of wenkite"
			Z. Kristallogr., 137, 113-126 (1973)
			Material name:   Wenkite
			Chemical formula:   [Al8Si12O39(OH)2]--WEN
	§	Merlino, S.
			"The Crystal Structure of Wenkite"
			Acta Crystallogr., B30, 1262-1266 (1974)

	Name and Code derivation:
		Wenkite   -WEN

§	Chemical Formula and Unit Cell taken from the reference marked with this sign