BST120 Blue Star Thunderegg Specimen Rectangle Turkish Stick Agate polished cabochon

Turkish Stick Agate polished cabochon showing intersecting sprays of stick-like formations in brown and blue-gray within clear agate

They are very dark and appear almost black

Montana Moss Agate

and white banded agate with a quartz center

and green Sagenite in translucent agate

BST120 Blue Star Thunderegg Specimen Rectangle Turkish Stick Agate polished cabochonThis polished Blue Star Thunderegg shows brecciated rhyolite filled with translucent agate with gentle feathery bands in white to pale blue. The surface is scattered with tiny open vugs that reveal hints of crystal druzy. The chalcedony shows green fluorescence under 365nm ultraviolet light. Polished Surface: 9. 5cm x 5cm Approx. 1. 25" deep 5. 6oz Blue Star Thundereggs are a recent find out of Sonora, Mexico. They have a dark grayish to reddish brown