BST114pr Blue Star Thunderegg Specimen Pair
These polished halves of a Blue Star Thunderegg show an open chalcedony cavity coated in sparkling crystal druzy, inside translucent agate with feathery white banding. The rest of the egg is made from gray and brown rhyolite, with patterning similar to petrified wood that radiates outward from the agate.
The chalcedony shows green fluorescence under 365nm ultraviolet light.
Polished Surface: 8.8cm x 6.2cm and 9cm x 6.1cm
Each half approx. 1.5" deep
14.3oz
Blue Star Thundereggs are a recent find out of Sonora, Mexico. They have a dark grayish to reddish brown outer rind with blue chalcedony inside, typically with a prevalent classic thunderegg star pattern. Many nodules are only partially filled, revealing open inner cavities showing botryoidal formations of chalcedony and crystal druzy inside.
Original: $55.00
-65%$55.00
$19.25Product Information
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Description
These polished halves of a Blue Star Thunderegg show an open chalcedony cavity coated in sparkling crystal druzy, inside translucent agate with feathery white banding. The rest of the egg is made from gray and brown rhyolite, with patterning similar to petrified wood that radiates outward from the agate.
The chalcedony shows green fluorescence under 365nm ultraviolet light.
Polished Surface: 8.8cm x 6.2cm and 9cm x 6.1cm
Each half approx. 1.5" deep
14.3oz
Blue Star Thundereggs are a recent find out of Sonora, Mexico. They have a dark grayish to reddish brown outer rind with blue chalcedony inside, typically with a prevalent classic thunderegg star pattern. Many nodules are only partially filled, revealing open inner cavities showing botryoidal formations of chalcedony and crystal druzy inside.
