AM_Eudialyte_4 Formula: Ca3.78 Mn2.28 Y.18 Ce.18 La.18 Zr2.67 Fe1.53 Ti.75 Si25.92 Nb.08 Na13.5 Sr.12 K.36 O75.144 Cl.444 H.564 Name: Eudialyte Unit cell: 14.1697 14.1697 30.142 90.0 90.0 120.0 , V=5241.12 Space group: R-3M (166)

Johnsen O , Grice J D , The Canadian Mineralogist , 37 (1999) p.865-891, The crystal chemistry of the eudialyte group, Locality: Saint-Amable sill, Varennes, Verchares County, Canada, Sample: #9, Note: additional sites with low but unreported occupancies excluded