a dark-colored, hard, radioactive, mineral, (Y,Ce,U,Ca,Fe,Pb,Th)(Nb,Ta,Ti,Sn)O, that is an ore of uranium or niobium
Origin of samarskite; from Fr, after Colossians V. E. Samarski-Bykhovets (1803-70), Russian mining engineer
A velvet-black mineral that is a complex mixture of several rare-earth metals with niobium and tantalum oxide.
Origin of samarskiteAfter Col. M. von Samarski, 19th-century Russian mining official.
After Vasilii Evgrafovich Samarski-Bykhovets in 1847.