English dictionary
samarskite
/s/@/'m/A/rsk/aI/t/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
adjective
-
A rare mineral having a velvet-black color and submetallic luster. It is a niobate of uranium, iron, and the yttrium and cerium metals.
Source: webster1913
noun
-
a complex black mineral occurring in pegmatites
Source: WordNet 3.0