Calcium sodium bis(tantalate) hemihydroxide hemifluoride

H_.5CaF_.5NaO_6.5Ta₂

Rosen, OWestgren, A

Geologiska Foereningens i Stockholm Foerhandlingar (1938) 60, 226-235

a=4.92Å   b=5.54Å   c=11.78Å

α=90°   β=90°   γ=90°