Material Name:	Levyne
	Chemical Formula:	|Ca9 (H2O)50 | [Al18Si36O108]-LEV
	Unit Cell:§	trigonal	R -3 m (# 166)
		a' = 13.3380 Å	b' = 13.3380 Å	c' = 23.0140 Å
		α' = 90.000°	β' = 90.000°	γ' = 120.000°
	Framework Density:	15.2 T/1000 Å3

Channels:

[001] 8 3.6 x 4.8** Dimensionality   Sorption (molecular cross section > 3.4Å): 2-dimensional   Topological (pore opening > 6-ring): 2-dimensional

	References:
		Barrer, R.M. and Kerr, I.S.
			"Intracrystalline channels in levynite and some related zeolites"
			Trans. Faraday Soc., 55, 1915-1923 (1959)
			Material name:   Levyne
			Chemical formula:   [Al18Si36O108]-LEV
	§	Merlino, S., Galli, E. and Alberti, A.
			"The crystal structure of Levyne"
			Tschermaks Min. Petr. Mitt., 22, 117-129 (1975)

	Name and Code derivation:
		Levyne   LEV

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