AM_Painite Formula: Zr Ca Al9 B O18 Name: Painite Unit cell: 8.715 8.715 8.472 90.0 90.0 120.0 , V=557.25 Space group: P63 (173)

Moore P B , Araki T , American Mineralogist , 61 (1976) p.88-94, Painite, CaZrB[Al9O18]: Its crystal structure and relation to jeremejevite,, B5[X3Al6(OH)3O15], and fluoborite, B3[Mg9(F,OH)9O9]