In albitized areas of highly fractionated rare element-enriched granite pegmatites.
IMA Status:
Approved IMA 1981
Locality:
From an undisclosed locality [Leshaia pegmatite, Vuoiyarvi carbonatite complex] on the Kola Peninsula, Russia. In the Mdara mine, Bikita, Zimbabwe. From the Alta fo Giz pegmatite, near
Link to MinDat.org Location Data.