Definitions for: Tantalite

[n] a mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum

Webster (1913) Definition: 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.

See Also: atomic number 73, mineral, Ta, tantalum