A little background first. My brother works for a company that hosts a huge picnic every summer, and at this picnic they have a large booth every year where you "mine" for minerals - basically you get a big bag of dirt and you sift it out through running water and see what rough stones you get. Unfortunately, since everything is mixed, there is no way for me to know where the stones came from. But I have found some very nice stones - amethysts, rose quartz, snowflake obsidian, even a single piece of ruby-in-fuchsite. But this one I am at a complete loss to identify, and I hope someone can help me.
I'm sorry for the quality of the pictures, my camera isn't very good. The stone has many beautiful shades of orange, ranging from an orangy-brown on the darkest parts to a pretty light peach. The colors are arranged in bands along the edges, and the rough top shows different sections of orange, peach, and a tiny bit of white.
I'm not sure if it's a kind of jasper (most likely), or perhaps sardonyx? If anyone could help, I'd greatly appreciate it. I don't feel right adding it to my collection without trying to get an opinion on it.