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A Geoscience Digital Image Library

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TitleCherty ironstone, similar to taconite
DescriptionThis sample contains lighter colored chert with a mix of darker iron oxide and iron hydroxide minerals. It is from the Ironwood formation, Upper Peninsula, Michigan.
LocationUSA ▹ Michigan. Near Ironwood.
PhotographerDarla Sondrol. 2001-07-23.
CollectionUniversity of North Dakota Mineralogy Collection #3502.
Key wordschert, ironstone, Michigan
Tech details795 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1295