Formula: Ca6.6 Y.09 Ce.03 Fe1.89 Mn.69 Si25.88 Nb.16 Na13.08 Sr.66 K.36 (Zr2.79 Ti.21) O75.098 Cl.998 H.998
Name: Eudialyte
Unit cell: 14.273 14.273 30.131 90.0 90.0 120.0 , V=5315.87
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: Gardiner complex, East Greenland, Sample: #10, Note: additional sites with low but unreported occupancies excluded