Wow, what an interesting piece of Australia, yes mined and made right here in our wonderful country. This is a natural piece of gold from the Palmer River region in North Queensland, stylishly set into the nugget is a natural Black Opal from my friends mine on the Coocoran Field of Lighting Ridge. The Opal displays brilliant colour forest green on a dark N2 base tone of the natural opal. The nugget was surrounded by quartz when I got it and after months of cleaning it,has an amazing texture from the quartz to it. Mined by mates, made by me. I love Australia. Be the first to take this piece out of the country. Enjoy.