Black Dome Thunderegg — Rare British Columbia Specimen | Green & Red Shell, Tiny Druzy Pocket, Fortification Lines

This exceptional Black Dome thunderegg from British Columbia showcases the uncommon and highly sought-after features that make this bed so unique. The exterior shell displays a beautiful green and red coloration, a striking combo rarely seen together and a true hallmark of the Black Dome deposit.

Inside, the polished face reveals a gorgeous agate center with a tiny druzy cavity, adding just the right amount of sparkle when it catches the light. Subtle fortification lines trace delicate patterns through the agate, while a few black floaters add depth and contrast within the center.

Cut and polished in my shop. A truly special specimen, full of color, texture, and surprising detail, perfect for thunderegg collectors, agate enthusiasts, or anyone who loves unique natural treasures.