CMT157 Cold Mountain Thunderegg Specimen Aquamarine and mounted on a base

and mounted on a base of Coral and Black Onyx

This polished slab features golden yellow and cream

See Sodalite

From Kerrouchen

CMT157 Cold Mountain Thunderegg Specimen Aquamarine and mounted on a baseA polished specimen featuring reddish brown, dusty peach tan, and translucent, blue gray chalcedony filling the thunderegg fracture pattern. 3" x 4. 5" x 2. 25" 1 lb 1. 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