AM_Rosslerite Formula: Mg As O11 H15 Name: Rosslerite Unit cell: 6.6918 25.744 11.538 90.0 95.15 90.0 , V=1979.67 Space group: C12/C1 (15)

Ferraris G , Franchini-Angela M , Acta Crystallographica, Section B , 29 (1973) p.286-292, Hydrogen bonding in the crystalline state. Crystal structure of MgHAsO4*7H2O, roesslerite, Note: B(1,3) of O2 was altered to reproduce axial lengths, Locality: synthetic