geodil.jpg

A Geoscience Digital Image Library

1316.jpg
TitleSiliceous taconite from Niwabik, Minnesota
DescriptionSiliceous taconite, Fe2O3, is a low-grade iron ore, a flintlike mineral usually containing less than 30% iron. Taconite is resistant to drilling and so due to the extraction of its contained metal, the rock was long considered worthless.
LocationUSA ▹ Minnesota. Near Niwabik.
PhotographerDarla Sondrol. 2001-07-24.
CollectionUniversity of North Dakota Mineralogy Collection #3465.
Key wordssiliceous, taconite, Minnesota
Tech details393 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1316