Glass is found at archaeological excavations in a variety of conditions. The glass condition can range from pristine, where no deterioration is visible, to so heavily degraded that practically all the glass has been transformed into corrosion products. The deterioration of the glass surface is

Certain types of colorless, transparent glasses, when exposed to sunlight for extended periods of time, develop a pink or pale purplish color. Bottles, insulators, and other objects having their color changed in this way are often called "desert glass," but the scientist prefers the term

On August 2, 2007, a beautiful, fully restored 16th-century German house altar (59.3.39) was put on display for the first time since its acquisition by The Corning Museum of Glass in 1959. The altar is 49.6 cm tall, and contains seven reverse-painted glass panels. These depict scenes of the

The Stages of Crizzling Stage 1: Initial Stage Presence of alkali on the glass gives the surface a cloudy or hazy appearance. Tiny droplets or fine crystals can form if there is high (above 55%) or low (below 40%) relative humidity. Glass may feel slippery or slimy. Washing will remove alkali from

Here’s the ultimate jigsaw puzzle: take 40 pieces of shattered glass in varying sizes, and hundreds of tiny chips of glass, and put them together to restore a rare Tiffany Peacock Eye Lamp base to its full glory. That’s just what the Museum’s conservator, Stephen Koob, has done. Unless you examine