structure. However, it makes good sense to include leucite and ammonioleucite, since the lattice structure...minerals belonged in the zeolite family all along. Leucite is a common, widespread mineral, and it is not...along and we will update our data summary. 16 Leucite K Al Si2 O6 , Z = 16 Named by Werner in 1791 after...occupied by sodium ions in analcime, are empty in leucite. In the tetragonal structure, the shape of the...Alteration In some rocks, called pseudoleucite, the leucite has been replaced by an intergrowth of potassium-rich |