Material Name:	VPI-9
	Chemical Formula:	|Rb22K2 (H2O)24|2 [Zn12Si48O120]2-VNI
	Unit Cell:	tetragonal	P 41 21 2 (# 92)
		a' = 9.8840 Å	b' = 9.8840 Å	c' = 73.6500 Å
		α' = 90.000°	β' = 90.000°	γ' = 90.000°
		(Relationship to unit cell of Framework Type: a' = a, b' = b, c' = 2c)
	Framework Density:	16.7 T/1000 Å3

Channels:

{<110> 8 3.1 x 4.0 <-> [001] 8 3.5 x .3.6}*** Dimensionality   Sorption (molecular cross section > 3.4Å): 1-dimensional   Topological (pore opening > 6-ring): 3-dimensional

	References:
		McCusker, L.B., Grosse-Kunstleve, R.W., Baerlocher, Ch., Yoshikawa, M. and Davis, M.E.
			"Synthesis optimization and structure analysis of the zincosilicate molecular sieve VPI-9"
			Microporous Materials, 6, 295-309 (1996)

	Name and Code derivation:
		Virgina Polytechnic Institute - nine   VPI-9 (nine)   VNI