AM_KMg7Cu3F3
Formula: K (Cu.3 Mg.7) F3
Name: KMg.7Cu.3F3
Unit cell: 3.9987 3.9987 3.9987 90.0 90.0 90.0 , V=63.94
Space group: PM3M (221)

Burns P C , Hawthorne F C , Hofmeister A M , Moret S L , Physics and Chemistry of Minerals , 23 (1996) p.141-150, A structural phase-transition in K(Mg1-xCux)F3 perovskite, Sample: x = 0.300