Chem, "Selective mono-N-methylation of primary aromatic amines by dimethyl carbonate over faujasite
X- and Y-type zeolites," Journal of the Chemical Society, Perkin Transactions 1, no.
 figured out the diffusion coefficients of proton jump in faujasite
zeolite (X, Y) in temperature between 373 and 673 K about 3.4 x [10.sup.-14] to 3.1 x [10.sup.-9] [cm.sup.2]/s with the jump distance of 4.4 [Angstrom].
There are many species of zeolites, such as Analcime, Chabazite, Clinoptilolite, Faujasite
, Ferrierite, Heulandite, Laumontite, Mordenite.
zeolite (a structure code is FAU, according to the database of the International Zeolite Association, IZA)  is a zeolite that has nearly spherical cavities with a diameter of 12 [Angstrom] connected by windows of 7.2 [Angstrom].
After the analyses, the soil minerals found were: quartz, calcite, sanidine, albite, nontronite, muscovite, montmorillonite, hematite, faujasite
, dolomite, microcline, anorthite, anorthoclase, clinochlore and epidote.
Zeolites Y and X are isomorphs of the mineral faujasite
. The exchangeable cations can be located on various sites.
Ozin, "Frequency and intensity considerations in the far-IR spectroscopy of faujasite
zeolites: experiment and theory.
These tetrahedra are linked together by their corners and make a rich variety of beautiful structures, and they are the basic building blocks for various zeolite structures, such as the low-silica zeolites Na-A (LTA, Linde type A) and Na-X (FAU, faujasite
), with a molar ratio of Si/Al of 1:1, which are the most common commercial adsorbents.
Our data indicated the formation of-phillipsite (PDF 000-51-1497), sodalite (PDF 010-88-1190) and faujasite