AM_Tarapacaite Formula: K2 Cr O4 Name: Tarapacaite Unit cell: 7.663 10.388 5.922 90.0 90.0 90.0 , V=471.41 Space group: PNAM (62)

McGinnety J A , Acta Crystallographica, Section B , 28 (1972) p.2845-2852, Redetermination of the structures of potassium sulphate and potassium chromate:, the effect of electrostatic crystal forces upon observed bond length