AM_Leonite Formula: K2 Mg S2 O12 H8 Name: Leonite Unit cell: 11.778 9.469 9.851 90.0 95.26 90.0 , V=1094.01 Space group: P121/A1 (14)

Hertweck B , Giester G , Libowitzky E , American Mineralogist , 86 (2001) p.1282-1292, The crystal structures of the low-temperature phases of leonite-type compounds,, K2Me(SO4)2.4H2O (Me=Mg,Mn,Fe), Sample: K2Mg(SO4)2.4H2O, T = 100 K