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Even when a nodule appears promising externally
The visible inclusions and natural fracture lines are not defects in presentation—they are part of the geological formation process of chlorastrolite
A mesmerizing example of nature's precision
creating remarkable depth and contrast throughout the specimen
Soft layers of cream
Rare Hematite Tube Copper Replacement Agate Copper Replacement Agate Even when a nodule appearsRare 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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