CMT158 Cold Mountain Thunderegg Specimen Copper INT141db Intarsia Drilled Bead

INT141db Intarsia Drilled Bead

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

Between 11 mm and 20 mm long

The shells are preserved in marine rock

All of the cabs shown are cut and polished by hand in our lapidary shop in Cedarburg

CMT158 Cold Mountain Thunderegg Specimen Copper INT141db Intarsia Drilled BeadA 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