Chicken Track Jasper Slab Lapidary Stone Slab Gary Green Most of these thundereggs were

Most of these thundereggs were dug before the 1970s

It all cuts wonderfully

This material is opal replaced

due to cultural artifacts being found on-site

Chicken Track Jasper Slab Lapidary Stone Slab Gary Green Most of these thundereggs wereChicken Track Jasper is an old stock Jasper, and is believed to have been fossil worm tunnels. It has some awesome pattern and colors, and can be a picture jasper when cut right. This stunning material is a pretty neat one, and it gets its name from the worm tunnels on top; often resembling chicken tracks. Measurements (inches longest approx): 3. 9 x 1. 4 x . 23 The last photo has been taken dry so that you may see any defects. The other photos have