African Blue Lace Agate Slab! Lapidary Stone Slab! Gastropod They first appeared during the

They first appeared during the Silurian Period (435 million to 410 million years ago) and were abundant and widespread in the seas of the Jurassic and Cretaceous periods (175 million to 65 million years ago)

This particular slab was well before the 1970s

which was even more rare

Here is a gorgeous slab of Shrinkwood Petrified Wood from Texas

African Blue Lace Agate Slab! Lapidary Stone Slab! Gastropod They first appeared during theAfrican Blue Lace Agate is a rare lace agate from Namibia, South Africa. Agate that holds blue coloration when cutting is very rare, but blue lace agate quickly gained popularity by its ability to hold the blue and work into some amazing slabs for cabs. This material has some gorgeous lace, with multiple shades of blue present! It is a pretty hard to come by stone, and its certainly one you don't want to miss out on when you find. Measurements (inches