Oxyyttropyrochlore-(Y),
/ref> also referred to as "obruchevite" or "yttropyrochlore-(Y)", is a potential (not yet accepted) zero-valent-dominant mineral of the

pyrochlore Pyrochlore () is a mineral group of the niobium end member of the pyrochlore supergroup. The general formula, (where A and B are metals), represent a family of phases isostructural to the mineral pyrochlore. Pyrochlores are an important class of ...

group. Its formula can be written as (Y,◻)₂Nb₂O₂O. The name "yttropyrochlore-(Y)" for this compound was used by Kalita (1957), and Ercit et al. (2003), but it has become obsolete and the

mineral In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2 ...

status is not yet clear. The yttropyrochlore-(Y) as mentioned by Tindle & Breaks (1998) is in fact "oxyyttropyrochlore-(Y)".

References

* Citing: * * * Niobium minerals Oxide minerals {{mineral-stub