-
Feklichevite is a rare
mineral of the
eudialyte group with the
formula Na11Ca9(Fe3+,Fe2+)2Zr3NbSi(Si3O9)2(Si9O27)2. The
original formula was
extended to...
-
extended to show the
presence of
cyclic silicate groups. It is
similar to
feklichevite,
differing from it in the
presence of
essential vacancies (at the M3...
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Feitknechtite Fkn Ferronigerite-6N6S Fng-6N6S
Fluornatrocoulsellite Fnc
Feklichevite Fek Ferronordite-(Ce) Fnor-Ce
Fluornatromicrolite Fnmic Felbertalite...
- composition, with
calcium at two main
sites instead of one site.
Together with
feklichevite, fengchengite,
ikranite and
mogovidite it is a ferric-iron-dominant representative...
- Na15Ca6(Fe,Mn)3Zr3(Si3O9)2SiO(Si9O27)2(O,OH,H2O)3(OH,Cl)2 (space
group R-3m)
Feklichevite – Na11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5 (space
group R3m) Fengchengite...
- the
presence of
ferric iron (thus
similar to ikranite,
mogovidite and
feklichevite) and essential, site-dominating vacancies. The
mineral was discovered...
- p., 1965) 4.FE.25 [76] [77] [78] (IUPAC: hydromanganese(III) oxide)
Feklichevite (eudialyte: IMA2000-017) 9.CO.10 [79] [80] [no]
Felbertalite (IMA1999-042)...
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Eudialyte Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2 (?)
Feklichevite Na11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5
Ferrokentbrooksite Na15Ca6(Fe...
