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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Between 11 mm and 20 mm long
All of the cabs shown are cut and polished by hand in our lapidary shop in Cedarburg
and white banded agate with quartz and druzy center
Each slab is unique and can have varying patterns of banding
CMT158 Cold Mountain Thunderegg Specimen Copper Between 11 mm and 20A 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