Although many people will tell you that it's impossible to tumble Petoskey stones, the first two stages are actually easy to do. After that, you can hand sand them pretty quickly. The Petoskey stone is a 360,000,000 year old coral fossil called hexagonaria. It is the state stone of Michigan.
If you don't have a tumbler or a Dremel, you can do the whole process manually:
0 Comments