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This polished Fishhook Thunderegg features a star-shaped center revealing an open cavity of sparkling crystals outlined in translucent agate, within a white, gray, reddish-brown, and cool-brown rhyolite egg. The agate bands show a very faint green fluorescence under UV light (tested under 365nm).
Dimensions:
5" x 5.5" polished surface
2.25" deep
2lb 3.8oz
Fishhook Thundereggs come from the Little Florida Mountains near Deming, New Mexico. These rhyolitic thundereggs can be partially hollow or completely filled. Quartz, calcite, chalcedony, and seams of faintly banded agate can all be found inside, along with yellow and red staining.