AM_Lopezite_2 Formula: K2 Cr2 O7 Name: Lopezite Unit cell: 7.42 13.399 7.3845 98.03 90.88 96.18 , V=722.40 Space group: P-1 (2)

Brunton G , Materials Research Bulletin , 8 (1973) p.271-274, Refinement of the structure of K2Cr2O7, Locality: synthetic