Definitions for: Samarskite

[n] a complex black mineral occuring in pegmatites

Webster (1913) Definition: Sa*mar"skite, a. [After Samarski, a Russian.]
(Min.)
A rare mineral having a velvet-black color and submetallic
luster. It is a niobate of uranium, iron, and the yttrium and
cerium metals.

See Also: atomic number 64, gadolinium, Gd, mineral, pegmatite