These are all decorative glasses mainly used in the
construction of Stained Glass lamps & artistic work. By the
mixing of many colours there are many different effects including
cloudy areas & subtle colour changes.
This is Opalescent Glass which is made primarily of
opal glass. Because of their reflectiveness, with backlight, they
produce a captivating glow. Mainly used in the production of lamps or
other forms of lighting.