Ne syenites are deposits in their own rights and mined already as a non-metallic deposit. They are targeted upon for REE deposits and to a lesser extent Nb/Ta. They may be considered as unconventional concentrations of Be, U, Th, Al, Ga and Ti (currently not held to be economic)

HGD

If the nepheline is fresh and not weathered, it can be used in glass-making.

Ring Complexes include a wide range of rock types including nepheline syenites along with other rocks of alkaline and peralkaline chemical signatures. These ring like bodies hosts mainly REE together with Radioactive Ore Deposits ( U, Th, K, Be,.....)