The eudialyte group includes:
eudialyte:
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ferrokentbrooksite:
Na15Ca6Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2
ikranite:
(Na,H3O)15(Ca,Mn,REE)6Fe3+2Zr3Si24O66 (O,OH)6Cl.nH2O
kentbrooksite:
(Na,REE)15(Ca,REE)6Mn3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2
selsurtite:
(H3O)12Na3(Ca3Mn3)(Na2Fe)Zr3☐Si[Si24O69(OH)3](OH)Cl.H2O
sergevanite:
Na15(Ca3Mn3)(Na2Fe)Zr3Si26O72(OH)3.H2O
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