AM_Leonite_3
Formula: K2 Mn S2 O12 H8
Name: Leonite
Unit cell: 12.031 9.531 9.902 90.0 95.02 90.0 , V=1131.08
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: K2Mn(SO4)2.4H2O, T = 110 K