Striking copper specimen featuring vibrant native copper crystals embedded in white calcite matrix. Sourced from the historic White Pine Mine in Michigan's Ontonagon County, a legendary locality for copper minerals. This 8 × 0.5 × 3.5 cm specimen showcases the classic contrast between bright metallic copper and pale calcite host rock. A distinctive addition to any mineral collection, with authentic provenance and notable geological significance from one of North America's premier copper sources.
