Citation: Hammond, R. P.; Barbier, J. (1998). Monoclinic and Hexagonal Nepheline Structures of (Na~3/4~/K~1/4~)AlGeO~4~. Acta Crystallographica Section B, 54, pp. 211-220.
Formula: Al0.97 Ge1.03 K0.19 Na0.78 O4
Chemical name:\b-sodium potassium aluminum germanate