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Upper Peninsula material is less commonly encountered in mainstream lapidary circulation
A mesmerizing example of nature's precision
Every element is fabricated by hand and assembled to emphasize material origin
This ring features a large chlorastrolite (Michigan “greenstone”) cabochon sourced from the Keweenaw Peninsula region of Lake Superior
or structurally unstable material that cannot be reliably cut into cabochons
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
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