AM_Beraunite
Formula: Fe4.8 Mn1.2 P4 O27 H17
Name: Beraunite
Unit cell: 20.76 5.154 19.248 90.0 93.55 90.0 , V=2055.53
Space group: C12/C1 (15)

Marzoni Fecia di Cossato Y , Orlandi P , Pasero M , The Canadian Mineralogist , 27 (1989) p.441-446, Manganese-bearing beraunite from Mangualde, Portugal: mineral data, and structure refinement, Locality: Mangualde, Portugal