The wöhlerite group includes:
baghdadite:
Ca6Zr2(Si2O7)2O4
cuspidine:
Ca8(Si2O7)2F4
hiortdahlite:
Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
janhaugite:
Na3Mn2+3Ti2(Si2O7)2(O,OH,F)4
låvenite:
(Na,Ca)4(Mn2+,Fe2+)2(Zr,Ti,Nb)2(Si2O7)2(O,F)4
moxuanxueite:
NaCa6Zr(Si2O7)2OF3
niocalite:
Ca7Nb(Si2O7)2O3F
wöhlerite:
Na2Ca4Zr(Nb,Ti)(Si2O7)2(O,F)4
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