20.
IKRANITE, (Na,H_3O)_(15)(Ca,Mn,REE)_6Fe_2~(3+)Zr_3 (square,Zr)(square Si)Si_(24)O_(66)(O,OH)_6Cl centre dot nH_2O AND RASLAKITE Na_(15)Ca_3Fe_3(Na,Zr)_3Zr_3(Si,Nb) (Si_(25)O_(73))(OH,H_2O)_3(Cl,OH) -- THE NEW EUDIALYTE-GROUP MINERALS FROM LOVOZERO MA
机译:IKRANITE,(Na,H_3O)_(15)(Ca,Mn,REE)_6Fe_2〜(3+)Zr_3(square,Zr)(square Si)Si_(24)O_(66)(O,OH)_6Cl中心点nH_2O和RASLAKITE Na_(15)Ca_3Fe_3(Na,Zr)_3Zr_3(Si,Nb)(Si_(25)O_(73))(OH,H_2O)_3(Cl,OH)-来自LOVOZERO的新型EUDIALYTE-GROUP矿物嘛