AM_Shirozulite Formula: (K.91 Ba.09) Mn1.53 Ti.03 Al1.74 Fe.21 Mg.93 Si2.56 O11.98 F.02 H1.98 Name: Shirozulite Unit cell: 5.3791 9.319 10.2918 90.0 100.186 90.0 , V=507.77 Space group: C12/M1 (12)

Ishida K , Hawthorne F C , Hirowatari F , American Mineralogist , 89 (2004) p.232-238, Shirozulite, KMn3(Si3Al)O10(OH)2, a new manganese-dominant trioctahedral mica:, Description and crystal structure, Note: Displacement factors for O1, O2 and O4 have been altered.