AM_Haidingerite Formula: Ca As O5 H3 Name: Haidingerite Unit cell: 6.904 16.161 7.935 90.0 90.0 90.0 , V=885.35 Space group: PCNB (60)

Ferraris G , Jones D W , Yerkess J , Acta Crystallographica, Section B , 28 (1972) p.209-214, A neutron and X-ray refinement of the crystal structure of CaHAsO4*H2O (haidingerite), Sample: neutron refinement, Locality: synthetic