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Iron-bearing seepage from an anaerobic bog in Adams Township, Houghton... | Download Scientific Diagram
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Samples and enlarged fragments of iron-bearing rocks from the Ekven... | Download Scientific Diagram
![Taconite. Taconite is an iron-rich (20-30%) sedimentary rock, in which iron- bearing layers alternate with quartz, chert, or carbonate. The iron conten Stock Photo - Alamy Taconite. Taconite is an iron-rich (20-30%) sedimentary rock, in which iron- bearing layers alternate with quartz, chert, or carbonate. The iron conten Stock Photo - Alamy](https://c8.alamy.com/comp/2ACJ1BG/taconite-taconite-is-an-iron-rich-20-30-sedimentary-rock-in-which-iron-bearing-layers-alternate-with-quartz-chert-or-carbonate-the-iron-conten-2ACJ1BG.jpg)
Taconite. Taconite is an iron-rich (20-30%) sedimentary rock, in which iron- bearing layers alternate with quartz, chert, or carbonate. The iron conten Stock Photo - Alamy
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Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis
![Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis Iron-oxide concretions and nodules 1 | Some Meteorite Information | Washington University in St. Louis](https://sites.wustl.edu/meteoritesite/files/2019/11/concretions_6x.jpg)