AM_Korshunovskite
Formula: Mg2 (O7 Cl) H11
Name: Korshunovskite
Unit cell: 8.65 6.27 7.43 101.97 104.0 73.18 , V=370.15
Space group: P-1 (2)

de Wolff P M , Walter-Levy L , Acta Crystallographica , 6 (1953) p.40-44, The crystal structure of Mg2(OH)3(Cl,Br)*4H2O, Locality: synthetic