AM_K3Ca2(SO4)3F Formula: K3 Ca2 F S3 O12 Name: K3Ca2(SO4)3F Unit cell: 13.415 10.493 9.127 90.0 90.0 90.0 , V=1284.75 Space group: PN21A (33)

Fayos J , Watkin D J , Perez-Mendez M , American Mineralogist , 72 (1987) p.209-212, Crystal structure of the apatite-like compound K3Ca2(SO4)3F