Marquette Lake Superior Agate Pendant Copper Replacement Agate stable sections suitable for cabochon

stable sections suitable for cabochon cutting are uncommon

One of the primary collecting areas has been lost to shoreline erosion

where plume

Areas of native copper and oxidation create a natural contrast against the translucent chalcedony

Marquette Lake Superior Agate Pendant Copper Replacement Agate stable sections suitable for cabochonThis pendant is set with a Marquette region Lake Superior agate sourced from the Upper Peninsula of Michigan. Lake Superior agates from this region are formed within ancient basalt systems and later redistributed through glacial movement across the Great Lakes. While geologically part of a broader Lake Superior agate system, Upper Peninsula material is less commonly encountered in mainstream lapidary circulation, and quality varies significantly