AM_Bradaczekite
Formula: Na Cu4 As3 O12
Name: Bradaczekite
Unit cell: 12.053 12.432 7.2529 90.0 117.793 90.0 , V=961.42
Space group: C12/C1 (15)

Krivovichev S V , Filatov S K , Burns P C , Zapiski Vserossijskogo Mineralogicheskogo Obshchestva , 2001 (2001) p.1-8, The Jahn-Teller distortion of copper coordination polyhedra in the alluaudite, structural type: Crystal structure of bradaczekite, NaCu4(AsO4)3