AM_Mahnertite
Formula: (Na3.52 Ca.48) Cu11 As8 O46.5 Cl2.5 H82
Name: Mahnertite
Unit cell: 10.037 10.037 23.739 90.0 90.0 90.0 , V=2391.50
Space group: I4/MMM (139)

Pushcharovsky D Y , Zubkova N V , Teat S J , Maclean E J , Sarp H , European Journal of Mineralogy , 16 (2004) p.687-692, Crystal structure of mahnertite