Mystery Jasper Pendant

Here we have a wonderful patterned jasper of some kind. I was not able to identify this stone, but the patterns were too cool not to make into something. It is a black with a rust or deep orange color. It's really amazing! Do you know this stone? It is made with my usual silver plated enameled non-tarnish wire. It will come with a chain, please indicate in the notes at checkout if you would like 18" stainless steel chain, 24" stainless steel chain or 18" black cord.