AM_Carnallite
Formula: K Mg Cl3 O6 H12
Name: Carnallite
Unit cell: 16.119 22.472 9.551 90.0 90.0 90.0 , V=3459.62
Space group: PNNA (52)

Schlemper E O , Sen Gupta P K , Zoltai T , American Mineralogist , 70 (1985) p.1309-1313, Refinement of the structure of carnallite, Mg(H2O)6KCl3