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Betafite group

Additional information / Summary

siehe auch unter: Betafit (nach Hogarth 1977)

Chemism

Classification by Hölzel

4.CJ

4: OXIDES
C: R2O3 Sesquioxides
J: Betafite-Group, Ti-dominant on the B-site

Dana 8th edition

08.02.03.01

08: Multiple Oxides with Nb, Ta, and Ti
02: Multiple Oxides with Nb, Ta, and Ti where (A)2 (B2O6) (O,OH,F)
03: Pyrochlore Group (Betafite Subgroup; 2(Ti)>(Ta+Nb)

Mineral status

Reihe/Gruppe/Serie/Folge

IMA Classification

IMA Classification

 Pyrochlore supergroup

Crystal Structure 3D

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IMA group assignments

 
Pyrochlore supergroup
A2-mD2X6-wZ1-n
 
 

 
 
Betafite group
 
 
 

 
 
 
Oxycalciobetafite
Ca2(Ti,Nb)2O6O
 
 

 
 
 
Oxyuranobetafite
(U,Ca,◻)2 (Ti,Nb)2O6O
 
 

 
 
Elsmoréite group
 
 
 

 
 
 
Hydrokenoelsmoreite
WO3·0.5H2O
kubisch
Fd3m

 
 
 
Hydroplumboelsmoreite
(Pb,☐)2(W,Fe3+)2O6(H2O)
kubisch
Fd3m

 
 
 
Hydroxykenoelsmoreite
(☐,Pb)2(W,Fe3+,Al)2(O,OH)6(OH)
trigonal
R3

 
 
Fluornatrocoulsellite
CaNa3AlMg3F14
trigonal
R3m

 
 
Hydrokenoralstonite
NaxMgxAl2-x(F,OH)6·H2O
kubisch
Fd3m

 
 
Microlite group
(Na,Ca)2Ta2O6(O,OH,F)
kubisch
Fd3m

 
 
 
Fluorcalciomicrolite
(Ca,Na)2Ta2(O,OH)6F
kubisch
Fd3m

 
 
 
Fluornatromicrolite
(Na,Ca,Bi)2(Ta,Nb)2O6F
kubisch
Fd3m

 
 
 
Hydrokenomicrolite
(◻,H2O)2Ta2(O,OH)6(H2O)
kubisch
Fd3m

 
 
 
Hydromicrolite
(H2O,◻)2Ta2(O,OH)6(H2O)
 
 

 
 
 
Hydroxycalciomicrolite
Ca1.5Ta2O6(OH)
kubisch
P4332

 
 
 
Hydroxykenomicrolite
(◻,Na,Sb3+)2Ta2O6(OH)
kubisch
Fd3m

 
 
 
Kenoplumbomicrolite
(Pb,◻)2Ta 2O6(◻,O,OH)
kubisch
Fd3m

 
 
 
Oxybismutomicrolite
(Bi1.33☐0.67)Σ2Ta2O6O
kubisch
Fd3m

 
 
 
Oxycalciomicrolite
Ca2Ta2O7
kubisch
Fd3m

 
 
 
Oxynatromicrolite
(Na,Ca,U)2(Ta,Nb)2O6(O,F)
kubisch
Fd3m

 
 
 
Oxystannomicrolite
Sn2Ta2O6O
kubisch
Fd3m

 
 
 
Oxystibiomicrolite
(Sb3+,Ca)2Ta2O6O
 
 

 
 
Oxyyttrobetafite-(Y)
Y2Ti2O6O
kubisch
Fd3m

 
 
Pyrochlore group
A2Nb2(O,OH)6Z
kubisch
Fd3m

 
 
 
Cesiokenopyrochlore
☐Nb2(O,OH)6Cs1−x {x ∼ 0.20}
kubisch
Fd3m

 
 
 
Fluorcalciopyrochlore
(Ca,Na)2(Nb,Ti)2O6F
kubisch
Fd3m

 
 
 
Fluorkenopyrochlore
(☐,Na,Ce,Ca)2(Nb,Ti)2O6F
 
 

 
 
 
Fluornatropyrochlore
(Na,Pb,Ca,REE,U)2Nb2O6F
kubisch
Fd3m

 
 
 
Fluorstrontiopyrochlore
(Sr,☐)2Nb2(O,OH)6F
 
 

 
 
 
Hydrokenopyrochlore
☐2Nb2O4(OH)2(H2O)
kubisch
Fd3m

 
 
 
Hydropyrochlore
(H2O,☐)2Nb2(O,OH)6(H2O)
kubisch
Fd3m

 
 
 
Hydroxycalciopyrochlore
(Ca,Na,U,☐)2(Nb,Ti)2O6(OH)
kubisch
Fd3m

 
 
 
Hydroxykenopyrochlore
(☐,Ce,Ba)2(Nb,Ti)2O6(OH,F)
kubisch
Fd3m

 
 
 
Hydroxymanganopyrochlore
(Mn,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)
kubisch
Fd3m

 
 
 
Hydroxynatropyrochlore
(Na,Сa,Ce)2Nb2O6(OH)
kubisch
Fd3m

 
 
 
Hydroxyplumbopyrochlore
(Pb1.5☐0.5)Nb2O6(OH)
kubisch
Fd3m

 
 
 
Kenoplumbopyrochlore
(Pb,☐)Nb2 O6(☐,O)
 
 

 
 
 
Oxycalciopyrochlore
Ca2Nb2O6O
 
 

 
 
 
Oxynatropyrochlore
(Na,Ca,U)2Nb2O6(O,OH)
 
 

 
 
 
Oxyplumbopyrochlore
Pb2Nb2O6O
 
 

 
 
 
Oxyyttropyrochlore-(Y)
(Y,☐) 2Nb2O6O
 
 

 
 
Roméite group
(Ca,Fe2+,Mn,Na)2(Sb,Ti)2O6(O,OH,F)
kubisch
Fd3m

 
 
 
Fluorcalcioroméite
(Ca,Na)2Sb5+2O6(F,OH)
kubisch
Fd3m

 
 
 
Fluornatroroméite
(Na,Ca)2Sb2(O,OH)6F
 
 

 
 
 
Hydroxycalcioroméite
(Ca,Sb3+)2(Sb5+,Ti4+)2O6(OH)
kubisch
Fd3m

 
 
 
Hydroxyferroroméite
(Fe2+1.5☐0.5)Sb5+2O6(OH)
kubisch
Fd3m

 
 
 
Oxycalcioroméite
Ca2Sb2O6O
kubisch
Fd3m

 
 
 
Oxyplumboroméite
Pb2Sb5+2O7
kubisch
Fd3m

 
 
 
Stibiconite ?
Sb3+Sb5+2O6(OH)
kubisch
Fd3m

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Actuality: 24. Jan 2023 - 07:46:52

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