Here's one of the nicest cabs of Coprolite you might ever find. I know it's the nicest I've every seen. This stone has been in my personal collection for many years and I've never seen any more Coprolite with the slate gray colors like you see in this cab.
The orange red colors are strikingly exceptional and in a very interesting pattern.
Well cut into a long rectangle with lightly rounded corners. Flat back and very low domed top. Both sides are polished.
Coprolite is actually fossil Dinosaur dung! There's a lot of interesting reading if you search Coprolite on the web. You'll also see this is an exceptionally fine example.