CMT150 Cold Mountain Thunderegg Specimen Agua Nueva Agate around 1" in size

around 1" in size

Many have full egg patterning and multiple colors

Petrified Wood polished cabochon featuring patterning in shades of browns and white

MAW158c Malawi Agate Cabochon features white

accessible information

CMT150 Cold Mountain Thunderegg Specimen Agua Nueva Agate around 1" in sizeThis polished specimen displays dusty pink with hints of yellow and gray blue, and a small vugg with partial chalcedony growth. 6. 5" x 4. 25" x 1. 75" 2 lb 3. 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