Rare Copper Replacement Agate Copper Replacement Agate which is 14k gold

which is 14k gold

This piece may not be defined by bright colors or classic fortification patterns

Once a viable section is identified

Because of this

Each finished piece therefore represents a highly selective outcome from a constrained and diminishing field source

Rare Copper Replacement Agate Copper Replacement Agate which is 14k goldCopper Replacement Agate Keweenaw Peninsula, Michigan A striking Copper Replacement Agate featuring a well defined copper structure surrounded by delicate banding. Soft layers of cream, and warm peach tones create a natural pattern that took millions of years to form within ancient volcanic rock. Copper Replacement Agates are among the most sought after agates from Michigan's Keweenaw Peninsula, formed when copper rich mineral solutions replaced