Eudialyte group
Lua error in package.lua at line 80: module 'strict' not found. Eudialyte group is a group of complex trigonal zircono- and, more rarely, titanosilicate minerals with general formula [N(1)N(2)N(3)N(4)N(5)]3[M(1a)M(1b)]3M(2)3M(4)Z3[Si24O72]O'4X2, where N(1) and N(2) and N(3) and N(5) = Na+ and more rarely H3O+ or H2O, N(4) = Na+, Sr2+, Mn2+ and more rarely H3O+ or H2O or K+ or Ca2+ or REE3+ (rare earth elements), M(1) and M(1b) = Ca2+, M(1a) = Ca2+ or Mn2+ or Fe2+, M(2) = Fe (both II and III), Mn and rarely Na+, K+ or Zr4+, M(3) = Si, Nb and rarely W, Ti and [] (vacancy), M(4) = Si and or rarely [], Z Zr4+ and or rarely Ti4+, and X = OH−, Cl− and more rarely CO32− or F−. Some of the eudialyte-like structures can even be more complex, however, in general, its typical feature is the presence of [Si3O9]6− and [Si9O27]18− ring silicate groups.[1] Like other zirconosilicates, the eudialyte group minerals possess alkaline ion-exchange properties, as microporous materials.[2]
List of the eudialyte-group minerals
- Alluaivite - Na19(Ca,Mn)6(Ti,Nb)3Si26O74Cl.2H2O
- Andrianovite - Na12(K,Sr,Ce)3Ca6Mn3Zr3NbSi(Si3O9)2(Si9O27)2O(O,H2O,OH)5
- Aqualite - (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl
- Carbokentbrooksite - (Na,□)12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3).H2O
- Dualite - Na30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3Mn(Si51O144)(OH,H2O,Cl)9
- Eudialyte - Na15Ca6(Fe,Mn)3Zr3(Si3O9)2SiO(Si9O27)2(O,OH,H2O)3(OH,Cl)2
- Feklichevite - Na11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5
- Ferrokentbrooksite - Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3(Cl,F,OH)2
- Georgbarsanovite - Na12(Mn,Sr,REE)3Ca6Fe3Zr3NbSi25O76Cl2.H2O
- Golyshevite - (Na10Ca3)Ca6Zr3Fe2SiNb(Si3O9)2(Si9O27)2(OH)3(CO3).H2O
- Ikranite - (Na,H3O)15(Ca,Mn)6Fe3+2Zr3-4SiO(Si3O9)2(Si9O27)2.2-3H2O
- Johnsenite-(Ce) - Na12(Ce,La,Sr,Ca)3Ca6Mn3Zr3WSiO(Si3O9)2(Si9O27)2(CO3)(OH,Cl)2.H2O
- Kentbrooksite - (Na,REE)15(Ca,REE)6(Mn,Fe)3Zr3(Si3O9)2SiO(Si9O27)2(O,OH,H2O)3F2.2H2O
- Khomyakovite - Na12Sr3Ca6Fe3Zr3(W,Nb)SiO(Si3O9)2(Si9O27)2(O,OH,H2O)3(OH,Cl)2
- Labyrinthite - (Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3
- Manganokhomyakovite - Na12Sr3Ca6Mn3Zr3(W,Nb)SiO(Si3O9)2(Si9O27)2(O,OH,H2O)3(OH,Cl)2
- Mogovidite - Na9(Ca,Na)5Ca6Zr3Fe2(SiNb)(Si3O9)2(Si9O27)2(CO3)(OH,H2O)3Cl0.3
- Oneillite - Na15Ca3Mn3Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
- Raslakite - Na15Ca3Fe2+3(Na,Zr)3Zr3Nb<0.5SiO(Si3O9)2(Si9O27)2(OH,H2O)3(Cl,OH)
- Rastsvetaevite - Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2
- Taseqite - Na12Sr3Ca6Fe3Zr3NbSiO(Si3O9)2(Si9O27)2(O,OH,H2O)3Cl2
- Voronkovite - Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl.H2O
- Zirsilite-(Ce) - (Na,□)12(Ce,Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3).H2O
Further reading
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