Rare Hematite Tube Copper Replacement Agate Copper Replacement Agate As the material separated and

As the material separated and solidified

Chlorastrolite of this size is increasingly rare

Michigan mineral

” this material represents a specific category of recovered industrial glasswork tied to a now-closed production era

Copper Replacement Agate – Keweenaw Peninsula

Rare Hematite Tube Copper Replacement Agate Copper Replacement Agate As the material separated andRare 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