Oxyyttropyrochlore-(Y)
Oxyyttropyrochlore-, also referred to as "obruchevite" or "yttropyrochlore-", is a potential zero-valent-dominant mineral of the pyrochlore group. Its formula can be written as 2Nb2O2O.
The name "yttropyrochlore-" for this compound was used by Kalita, and Ercit et al., but it has become obsolete and the mineral status is not yet clear. The yttropyrochlore- as mentioned by Tindle & Breaks is in fact "oxyyttropyrochlore-".
