AM_Protolithionite Formula: K.92 Na.09 Ca.01 Rb.01 Al1.49 Mg.03 Fe2.02 Mn.07 Li.33 Si2.98 O10.98 (F.99 Cl.03 H.98) Name: Protolithionite Unit cell: 5.3655 9.293 10.198 90.0 100.47 90.0 , V=500.02 Space group: C12/M1 (12)

Weiss Z , Rieder M , Smrcok L , Petricek V , Bailey S W , European Journal of Mineralogy , 5 (1993) p.493-502, Refinement of the crystal structures of two protolithionites , Sample : 1M