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Heavy iron-black mineral
Answer for the clue "Heavy iron-black mineral ", 9 letters:
tantalite
Alternative clues for the word tantalite
Word definitions for tantalite in dictionaries
Wiktionary
Word definitions in Wiktionary
n. (context mineralogy English) A dark-brown mineral that is an ore of tantalum and niobium, of the chemical formula (iron, manganese) tantalum 2 oxygen 6 .
WordNet
Word definitions in WordNet
n. a mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum
Wikipedia
Word definitions in Wikipedia
The mineral group tantalite [( Fe , Mn ) Ta O ] is the primary source of the chemical element tantalum . It is chemically similar to columbite , and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
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.
Usage examples of tantalite.
Thus gold, diamonds, platinum, titanium, tantalite, copper, iron ore, uranium and 52 other metals and minerals, many of them of absolutely vital strategic value to United States, passed into the hands of the Committee of 300.