Devit is when part of your color separates and appears to "boil" out on your bead. It is the pits - literally!!! It is a major PITA!! I don't think people have a lot of devit pics hanging around as, at least in my studio, the bead is banished rapidly - hopefully never to darken my door again!! If you want to see it for yourself - take some EDP (the name stands for Evil Devitrifying Purple) and heat it up pretty good then cool it and then reintroduce it to the flame a couple of times without heating it up thoroughly. I hope this helps!