Pay in 4 interest-free payments of $62.50 Learn more
Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
Upper Peninsula material is less commonly encountered in mainstream lapidary circulation
Some specimens are purchased for their beauty
As the material separated and solidified
Many stones of this type cannot survive full cabochon formation and are lost during the shaping process
Rare Hematite Tube Copper Replacement Agate Copper Replacement Agate Upper Peninsula material is lessRare Hematite Tube Copper Replacement Agate Keweenaw Peninsula, Michigan An exceptionally uncommon Copper Replacement Agate containing preserved hematite tube structures and visible native copper mineralization. The dark tube like formations within this specimen are composed of hematite, while native copper occurs around portions of the tubes and can be observed within the agate itself, including a small but distinct area of copper banding. The