From the Vault Experiment #25 Persephone is another collaboration between Northstar Glassworks and Gaffer Glass. This glass is an air free transparent pink which is color stable in the flame and possesses buttery smooth working characteristics. Techniques like coil-potting, blow-ins or sculptural work will show this color at its best. Fine line or stinger work will thin the color out. While some CFL reactivity has been noted we do not recognize it as the primary attribute of this color.