TACONITE

Taconite

Taconite is a variety of iron formation, an iron-bearing sedimentary rock, in which the iron minerals are interlayered with quartz, chert, or carbonate. Newton Horace Winchell, the Minnesota State Geologist, coined the term during his pioneering investigations of the Precambrian Biwabik Iron Formation of northeastern Minnesota. He noted the rock had a superficial resemblance to iron-bearing rocks from the Taconic Mountains of New York.

The above text is a snippet from Wikipedia: Taconite
and as such is available under the Creative Commons Attribution/Share-Alike License.

taconite

Noun

  1. a low-grade flint-like iron ore containing 20-30% iron


The above text is a snippet from Wiktionary: taconite
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!