Found 2 items, similar to tantalite.
English → English (WordNet) Definition: tantalite tantalite n : a mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum
English → English (gcide) Definition: Tantalite Tantalite \Tan"ta*lite\, n. [Cf. F. tantalite.] (Min.) A heavy mineral of an iron-black color and submetallic luster. It is essentially a tantalate of iron. [1913 Webster]