Structure analysis has shown that the compression of the alpha-phase is facilitated by the rigid body movement of the Si2O7 units from which the silicate double-layers are constructed.Ross, Nancy L.Zhao, JingSlebodnick, CarlaSpencer, Elinor C.Chakoumakos, Bryan C....
These values indicate that the compressibility of the α-phase of petalite lies between those of the alkali feldpsars and alkali feldspathoids, whereas the β-phase has a compressibility more comparable with layered silicates. Structure analysis has shown that the compression of the α-phase is ...