This cut thunderegg features a blue-gray chalcedony center surrounded by thin bands of white, gray, brown, and yellow agate. The natural volcanic matrix remains around the outside.
Under 365nm UV light, the stone fluoresces green.
The face has been cut to show the interior, while the exterior remains rough and natural.
Weight: 6.3 oz
Size: 2 ½ wide and 1 ½ thick
This cut thunderegg features a blue-gray chalcedony center surrounded by thin bands of white, gray, brown, and yellow agate. The natural volcanic matrix remains around the outside.
Under 365nm UV light, the stone fluoresces green.
The face has been cut to show the interior, while the exterior remains rough and natural.
Weight: 6.3 oz
Size: 2 ½ wide and 1 ½ thick
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