CMT158 Cold Mountain Thunderegg Specimen Copper These Mahogany Obsidian palm stones

These Mahogany Obsidian palm stones are a perfect hand-held size in black and dark reddish brown patterned obsidian

The shells are preserved in marine rock

and white banded agate with quartz and druzy center

INT176db Intarsia Drilled Bead features a center of blue quartz that creates an abstract landscape

CMT158 Cold Mountain Thunderegg Specimen Copper These Mahogany Obsidian palm stonesA polished specimen featuring reddish brown, dusty peach tan, and translucent, blue gray chalcedony filling the thunderegg fracture pattern. 3. 75" x 3" x 2" 13. 1 oz Cold Mountain Thundereggs are from the Sierra Mountains in Mexico. The thundereggs can contain water banding and feature red, mauve, or black webbing. While technically a rhyolite due to its thunderegg nature, Cold Mountain Thundereggs are highly silicate and feature large amounts of