Iridescent

Youghiogheny's mottled glass features organic patterns originally developed in the Tiffany era to simulate naturalistic qualities of light, shade and volume. Use in your projects to create an incredibly rich and realistic effect in nature scenes. Youghiogheny glass is popular among glass artists for its uncompromising quality and unique colors created by mixing artistry with technology. It recreates the magnificence of nature's palate. Add an extra dimension of beauty to your art. This iridized glass gives off a rainbow of colors! Great for accents or backgrounds. Second image shows glass backlit. 

Photo above is a general representation of glass colors. Colors may vary. Sizes are Approximate.