Multicolor Glowing Swirl Slag Uranium Glass Cullet Premium Swirl #251
Glows under a black light.
The piece of cullet in the photo is the exact piece you will receive.
Please be aware that cullet can have sharp edges.
If you are interested in multiple pieces that I have listed, feel free to contact me to put a personal bundle listing together. I am happy to bundle pieces to save money on shipping.