Fig. 8: Configuration of H2O dipole moments from Monte Carlo simulations.
From: Dielectric ordering of water molecules arranged in a dipolar lattice

We show the configuration of the molecular dipoles of water in cordierite crystalline matrix at zero temperature with two filling factors of water molecules. Red and blue colors correspond to directions along (blue) and against (red) the b-axis. a 100% filling factor. Dipoles are oriented ferroelectrically in the ab-planes and antiferroelectrically along the c-axis. b 75% filling factor corresponding to the studied hydrous cordierite crystal.