LAU: Type Material

Database of Zeolite Structures

Framework Type LAU

Reference Material

	Material Name:	Laumontite
	Chemical Formula:	\|Ca₄ (H₂O)₁₆ \| [Al₈Si₁₆O₄₈]-LAU
	Unit Cell:^§	monoclinic	A 1 m 1 (# 12)
		a' = 7.5490 Å	b' = 14.7400 Å	c' = 13.0720 Å
		α' = 90.000°	β' = 90.000°	γ' = 111.900°
		(Relationship to unit cell of Framework Type: a' = c, b' = a, c' = b, γ' = β)
	Framework Density:	17.8 T/1000 Å³

Channels:

[100] 10 4.0 x 5.3* (contracts upon dehydration)

Dimensionality
	Sorption (molecular cross section > 3.4Å):	1-dimensional
	Topological (pore opening > 6-ring):	1-dimensional

	References:
		Bartl, H. and Fischer, K.
			"Untersuchung der Kristallstruktur des Zeolithes Laumontit"
			N. Jb. Miner. Mh., , 33-42 (1967)
			Material name: Laumontite
			Chemical formula: [Al₈Si₁₆O₄₈]-LAU
	^§	Schramm, V. and Fischer
			"Refinement of the crystal structure of Laumontite"
			Adv. Chem. Ser. , 101, 259-265 (1971)
		Amirov, S.T., Ilyukhin, V.V. and Belov, N.V.
			Dokl. Akad. Nauk SSSR, 174, 667- (1967)
			Material name: Laumontite
			Chemical formula: [Al₈Si₁₆O₄₈]-LAU
		Artioli, G. and Ståhl, K.
			"Fully Hydrated Laumontite - A Structure Study by Flat-Plate and Capillary Powder Diffraction Techniques "
			Zeolites, 17, 249-255 (1993)
			Material name: Laumontite
			Chemical formula: [Al₈Si₁₆O₄₈]-LAU

	Name and Code derivation:
		Laumontite LAU



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

Limiting Rings

10-ring viewed along [100]

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