Iridescent glass is created by bonding a layer of metallic oxide to hot glass just after sheet-forming Iridescent, as the name implies, has a colorful, shimmering look
Something that is iridescent has many bright colours that seem to keep changing. iridescent bubbles. showing colours that seem to change in different lights (iris; IRIS)
varying in color when seen in different lights or from different angles; "changeable taffeta"; "chatoyant (or shot) silk"; "a dragonfly hovered, vibrating and iridescent"
having a play of lustrous rainbow-like colors; "an iridescent oil slick"; "nacreous (or pearlescent) clouds looking like mother-of-pearl"; "a milky opalescent (or opaline) luster"