Material Name:	Dachiardite
	Chemical Formula:	|(Ca0.5,K,Na)5 (H2O)12 | [Al5Si19O48]-DAC
	Unit Cell:§	monoclinic	C 1 2/m 1 (# 12)
		a' = 18.6760 Å	b' = 7.5180 Å	c' = 10.2460 Å
		α' = 90.000°	β' = 107.870°	γ' = 90.000°
	Framework Density:	17.5 T/1000 Å3

Channels:

[010] 10 3.4 x 5.3* <-> [001] 8 3.7 x 4.8* Dimensionality   Sorption (molecular cross section > 3.4Å): 2-dimensional   Topological (pore opening > 6-ring): 2-dimensional

	References:
		Gottardi, G. and Meier, W.M.
			"The crystal structure of dachiardite"
			Z. Kristallogr., 119, 53-64 (1963)
			Material name:   Dachiardite
			Chemical formula:   [Al5Si19O48]-DAC
	§	Vezzalini, G.
			"A refinement of Elba dachiardite: Opposite acentric domains simulating a centric structure"
			Z. Kristallogr., 166, 63-71 (1984)

	Name and Code derivation:
		Dachiardite   DAC

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