AM_Kolicite Formula: Mn7 As2 Zn4 Si2 O24 H8 Name: Kolicite Unit cell: 18.59 8.789 12.04 90.0 90.0 90.0 , V=1967.19 Space group: CMCA (64)

Peacor D R , American Mineralogist , 65 (1980) p.483-487, The crystal structure of kolicite, Mn7(OH)4[As2Zn4Si2O16(OH)4]