These chips are very suitable for making fake opals of UV-resin.
Drying time uvresin: ± 120 seconds mixed with not too many chips. Just with a heatgun of a lighter over it to let the air bubbles escape. For a super gloss add another or two layers of clarity. Note: Open the box on a saucer, as the pots are full, shavings will fall when the lid is opened.