cimorene

The name for the material that makes mid-20th-c. Murano glass lights/lamps look so incredibly biteable and candylike is cased glass.

1. Modern midcentury-style Italian mouthblown pendant lamp by the Murano masters at Millefiori
2. A vintage Yugoslavian blown glass pendant lamp
3. Vintage Italian pendant lamps by Venini

All the images were posted recently at my decorative arts Tumblr

designobjectory under the tag lighting.

The effect is caused by a colored layer of glass fused over an opaline/milk glass white layer; cased glass is any combination of two or more differently-colored layers, often with the opaque white on the outside or all the layers colored, and often with the outer layer etched or cut away to create a design. Cutaway and etched cased glass effects apparently go back to ancient times. The most familiar examples to many, however, will be 19th century antiques, particularly the then-wildly-popular Bohemian art glass (often further embellished with gold leaf and other painted-on designs), as seen in the ornate red and white objects in the top rows of images here and our heirloom Bohemian cranberry glass candy bowl here:

I haven't found a specific term for the color-over-milk cased glass that produces this luscious candy effect, but it was a very popular technique in the midcentury, not only in Murano glass, obviously. You can see a lot of Empoli (art glass center near Florence) cased glass from the period in luscious rows here.