This is NOT Opaline.
Experiment #83 Duro Light is a collaborative experiment between Northstar and Gaffer Glass with similar characteristics to Opaline. This campaign is simply a watered down formula of the Exp. Duro White. This glass is a translucent white with an iridescence blue shimmer. This glass varies with translucency and air content. Recommended to work an oxidizing flame and annealing temperature of 1100f-1150f.