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Grup Ruang Alluaivite Na19(Ca,Mn)6(Ti,Nb)3Si26O74Cl · 2H2O Trigonal R3m Amableite-(Ce) Na15[(Ce1.5Na1.5)Mn3]Mn2Zr3◻Si[Si24O69(OH)3](OH)2 · H2O Trigonal...