Great example of oolithic iron ore made of countless densely-packed, tiny spherical/bean-formed reddishbrown limonite aggregates cemented together. From the collection of the German Mining Museum Bochum.
Size: 4.5 x 3.5 x 3.0 cm
Locality: Mining district around Bochum, Arnsberg, Nordrhein-Westfalen, Germany (we cannot provide more precise information)
