Room-temperature icelike water in kanemite detected by 2H NMR T1 relaxation

2H NMR was used to study the nature of deuterated water in kanemite. Evidence is presented that shows that the water changes state from liquid to solid at room temperature during the hydration reaction that forms kanemite. The deuterium nuclei in the water experience rapid tetrahedral jumps in a hydrogen-bonded lattice like those observed in 2H2O ice.