Our kiln came with many bits, bobbles, and boxes. This MED-MAR Metals bottle has “25%” penciled onto the label, and claims to be Mother of Pearl. It’s been sitting on the shelf with the kiln furniture for years, and today, I had a few hours to run an experiment. I’m assuming that it’s a lustre and I’ve coated a clear glazed ceramic piece with this fluid, and it’s currently firing to cone 018 (750° Celsius) to see what happens. The best part of pottery is the magic of alchemy. Also, the worst part of pottery is the magic of alchemy. I’m hoping for the best.