The product is a rare vintage collection of Minnesota mining ore process samples, specifically taconite concentrate pellets, originating from the United States. These samples provide a unique glimpse into the history and industry of mining in Minnesota, offering valuable insights for collectors or those interested in natural resources and geological processes. With a focus on the processes of extracting and concentrating ores, these pellets serve as tangible evidence of the state's mining legacy and technological advancements in the field.

VINTAGE 1970’s MINNESOTA MINING ORE PROCESS SAMPLES TACONITE PELLETS