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Hölzel Systematik

4 Oxide

4.C R2O3 Sesquioxide

4.CH Pyrochlor-Gruppe, Nb-dominant on the B-site

4.CH. Pyrochlor-Gruppe, Nb-dominant on the B-site
Pyrochlor-Gruppe A2Nb2(O,OH)6Z kubisch Fd3m m3m 4.CH.

4.CH.0

Fluornatropyrochlor (Na,Pb,Ca,REE,U)2Nb2O6F kubisch Fd3m m3m 4.CH.020
Oxynatropyrochlor (Na,Ca,U)2Nb2O6(O,OH) 4.CH.040

4.CH.1

Hydroxycalciopyrochlor (Ca,Na,U,☐)2(Nb,Ti)2O6(OH) kubisch Fd3m m3m 4.CH.110
Hydroxymanganopyrochlor (Mn,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) kubisch Fd3m m3m 4.CH.119
Fluorcalciopyrochlor (Ca,Na)2(Nb,Ti)2O6F kubisch Fd3m m3m 4.CH.120
Oxycalciopyrochlor Ca2Nb2O6O 4.CH.140
Stibiobetafit(Var.v. Pyrochlor-Gruppe) (Sb3+,Ca)2(Ti,Nb,Ta)2(O,OH)7 kubisch Fd3m m3m 4.CH.141

4.CH.3

Fluorstrontiopyrochlor (Sr,☐)2Nb2(O,OH)6F 4.CH.320

4.CH.4

Oxyplumbopyrochlor Pb2Nb2O6O 4.CH.440
Plumbopyrochlor(Var.v. Pyrochlor-Gruppe) (Pb,Y,U,Ca)2-xNb2O6(OH) kubisch Fd3m m3m 4.CH.461
Kenoplumbopyrochlor (Pb,☐)Nb2 O6(☐,O) 4.CH.480

4.CH.6

Oxyyttropyrochlor-(Y) (Y,☐) 2Nb2O6O 4.CH.640
Yttropyrochlor-(Y)(Var.v. Pyrochlor-Gruppe) (Y,Na,Ca,U)1-2(Nb,Ta,Ti)2(O,OH)7 kubisch 4.CH.661

4.CH.9

Uranopyrochlor(Var.v. Pyrochlor-Supergruppe) (Ca,U,Na,Ce)2(Nb,Ta)2(O,OH,F)7 kubisch Fd3m m3m 4.CH.911
Strontiopyrochlor(Var.v. Pyrochlor-Gruppe) Sr0.6Nb2(O,OH)7 kubisch Fd3m m3m 4.CH.912
Ceriopyrochlor-(Ce)(Var.v. Pyrochlor-Supergruppe) (Ca,Ce,Y,Na)2(Nb,Ta)2(O,OH,F)7 kubisch Fd3m m3m 4.CH.913
Bismutopyrochlor(Var.v. Pyrochlor-Supergruppe) (Bi,U,Ca,Pb)1+x(Nb,Ta)2O6(OH)·nH2O kubisch Fd3m m3m 4.CH.914
Fluorkenopyrochlor (☐,Na,Ce,Ca)2(Nb,Ti)2O6F 4.CH.920
Hydropyrochlor (H2O,☐)2Nb2(O,OH)6(H2O) kubisch Fd3m m3m 4.CH.961
Bariopyrochlor(Var.v. Pyrochlor-Supergruppe) (Ba,Sr)(Nb,Ti)2(O,OH)7 kubisch Fd3m m3m 4.CH.962



Mineralsystematik-Übersicht