Self-diffusion parameters of water in analcite were measured (figure 7) by using a radiochemical technique. The rate of self-diffusion was found to be slow, and comparisons were made with water migration in other zeolites.

The Mobility of Water in Zeolites—I: Self-Diffusion of Water in Analcite. A.Dyer, A.Molyneux: Journal of Inorganic and Nuclear Chemistry, 1968, 30[3], 829–37