User blog comment:Cuddles Epic/Sacred Clay-based lifeforms/@comment-24180511-20130704210623

No, it's not carbon. It's-...well, everything. Not everything is carbon, though all organic material includes it. Think of it as just a mass of protons, neutrons, and electrons, that haven't bound together yet. By giving it shape, it becomes what you form it as.

This isn't exactly what happens, most likely, but it's an example.