Citation: Johnsen, O.; Grice, J. D. (1999). The crystal chemistry of the eudialyte group Sample: #9 Note: additional sites with low but unreported occupancies excluded. The Canadian Mineralogist, 37, pp. 865-891.
Formula: Ca3.78 Ce0.18 Cl0.444 Fe1.53 H0.564 K0.36 La0.18 Mn2.28 Na13.5 Nb0.08 O75.144 Si25.92 Sr0.12 Ti0.75 Y0.18 Zr2.67
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca18 Ce18 Fe27 K18 La18 Mn36 Na36 Nb24 O240 Si108 Sr18 Ti27 Y18 Zr27 (Ca6 Ce6 Fe9 K6 La6 Mn12 Na12 Nb8 O80 Si36 Sr6 Ti9 Y6 Zr9)