ALERT: New opal treatment; Dyed and colorless resin by Adam Harits, G.G (GRILab)

Recently, our reliable friends have sent us ten samples consisting of Indonesian Opal material before and after heavily treated. Normally, Opals are smoke and sugar treated to darken the body color. In this case, its quite different. This article will briefly explain the characteristic of those opal, before and after treatment, thus helping us understanding […]