6.5" Septarian Slab DS2234 oval Michigan's copper mines played a

Michigan's copper mines played a crucial role in supplying copper for the burgeoning industrialization of the United States and remain an important part of the state's history and economy

Weight: 28 grams

offering insights into the complex processes that shape our planet's mineralogical landscape

This nodule of Polish flint has been sliced and polished to display the wonderful banding inside

6.5" Septarian Slab DS2234 oval Michigan's copper mines played a6. 5" Septarian Slab Approx. Dimensions: 6. 5x6x0. 5 inches Approx. Weight: 568 grams Locality: Mexico Slab stand is included. Septarian, a distinctive sedimentary rock, forms through the combination of calcite, aragonite, and limestone with organic matter and minerals such as iron sulfide. It develops in concretions within sedimentary deposits, often found in regions with ancient seabeds, notably in Utah, USA, Madagascar, and Morocco. These