jdn,r SAMARSKITE-(Y), (Y,Fe,Ce,U)(Nb,Ta,Ti,)O4 Mitchell County, North Carolina, 3 x 3 x 2 cm | |
ex Dr Deanne K Smith collection, Small specimen of Samarskite-(Y) whose chemical formula is (Y,Fe,Ce,U)(Nb,Ta,Ti,)O4 from Mitchell County, North Carolina which is famous for Emeralds. |