BST123pr Blue Star Thunderegg Specimen Pair Lapis This is a polished specimen

This is a polished specimen featuring yellow agate with a large white and black druzy filled vugg

18mm x 51mm

red plumes in translucent agate

but the stones could also include Garnet

This crystal is from Brazil

BST123pr Blue Star Thunderegg Specimen Pair Lapis This is a polished specimenThese polished halves of a large Blue Star Thunderegg show an open cavity revealing botryoidal chalcedony formations covered in sparkling crystal druzy. Outlining the cavity is translucent agate with white and pale blue feathery bands, inside gray and brown rhyolite with patterning similar to petrified wood. The chalcedony shows green fluorescence under 365nm ultraviolet light. Polished Surface: 13. 5cm x 8. 4cm and 14. 7cm x 8. 4cm Approx. 2. 25" and