AM_Avogadrite
Formula: K B F4
Name: Avogadrite
Unit cell: 8.6588 5.48 7.0299 90.0 90.0 90.0 , V=333.57
Space group: PNMA (62)

Brunton G , Acta Crystallographica, Section B , 25 (1969) p.2161-2162, The crystal structure of KBF4