Each of LaserGlass Art’s Inner-Glow Collection shells are comprised of 45% leaded crystal compared to the 38% component found in Austrian crystal. The crystal shells are molded from actual seashells and individually hand-cast using our adaptation of an ancient Egyptian casting method. The shells contain a specialized, dichroic coating which gives them their unique inner glow. This material was first developed to provide superior reflectivity to ordinary mirrors in industrial laser applications. The coating is manufactured by evaporating extremely thin layers of metallic oxides onto glass in a carefully controlled vacuum. These techniques produce colors of purity unmatched by other methods and characterize our unique products.