Wood Grain Opal Soap - Great Cakes Soapworks Challenge

The October challenge for The Great Cakes Soapworks Soap Challenge Club is to create a soap that looks like natural wood grain. And wouldn't you know it - the birthstone for October is Opal. So, I chose wood that has become Opalized.This was my inspiration for the challenge. Petrified wood with an opal matrix. This sort of opal is very rare,...