Opalescent Combinations In this group of Spectrum Glass colors, opalescent combinations can be divided into three descriptive categories:
Wispy Opalescent mixes are traditionally composed of about 3/4 cathedral glass color and about 1/4 opaque white glass. In the finished sheet, wisps of opal display as both surface variegation and internal shadowing, generating reflection and depth.
Translucent Opalescent mixes are about 50-50 cathedral color and white opal glass. The larger proportion of opaque white reduces light transmission and increases surface reflection.
Semi-Translucent Opalescent mixes are primarily opal glass, eliminating the perception of images through the sheet. Because of their relative opacity, these glasses are highly reflective in nature.
[NOTE: All stated dimensions of sheet glass are approximate. Because of the unique process and conditions of manufacturing art glass, the sheets are not perfectly square, nor are the sizes exact. Unless noted otherwise all sheet glass is approximately 1/8" thick.]