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We are excited to welcome you back to the Museum! Advanced tickets are required and are now available for purchase. We are currently opening ticket availability on a rolling basis. Currently, dates extend into August. Visit our Health & Safety page for updates

All About Glass

All About Glass

This is your resource for exploring various topics in glass: delve deeper with this collection of articles, multimedia, and virtual books all about glass. Content is frequently added to the area, so check back for new items. If you have a topic you'd like to see covered, send us your suggestion. If you have a specific question, Ask a Glass Question at our Rakow Research Library.

Laboratory Studies of Some Glasses from Vergina

Colorless Glasses in Antiquity Most glass objects of the second and first millennia B.C. were strongly colored, as are the precious stones they were meant to imitate. Those that were not intentionally colored usually had a pronounced greenish tint, owing to the presence of iron impurities

An Inlaid Glass Plate in Athens: Laboratory Examination

Introduction In recent years it has become apparent that laboratory examinations of ancient glass might provide archaeologists and historians with valuable information about both ancient glass and the history of technology. At present several scientists working in this field are developing those

An Observation on the Corinth Diatretum

A great deal of attention has been directed toward understanding how Roman vasa diatreta were made. 1 Many of those who have handled the objects are convinced that they were made by deep cutting and undercutting heavy-walled blanks. Others have proposed explanations which require that the posts

Underwater Archeology

Between 1984 and 1994 the Institute of Nautical Archaeology (INA) excavated the remains of a Late Bronze Age shipwreck in the Mediterranean Sea. The ship's cargo consisted primarily of raw materials, including glass. Learn about archaeology underwater. Courtesy of Institute of Nautical

Does Glass Flow?

(No, It Doesn't Flow—read on for details) Early one spring morning in 1946, Clarence Hoke was holding forth in his chemistry class at West Side High School in Newark, New Jersey. "Glass is actually a liquid." the North Carolina native told us in his soft Southern tones. "You can

Scientific Investigations of Some Glasses from Sedeinga

In 1973, Prof. Jean Leclant described the glass excavated at Sedeinga, a meroitic site in Sudan. 1 Among the objects are two extremely important footed flutes bearing elaborate "painted, and gilded polychrome decorations. Professor Leclant dated the tombs in which the glasses were uncovered to

The Chemical Composition of a Faience Bead from China

During the past few years, there has been a vigorous renewal of interest in the study of ancient Chinese glass. This has been prompted largely by recent archaeological finds and by the availability of new scientific laboratory techniques for studying glass objects. Research in the past decade by

The Use of Equilibrated Silica Gel for the Protection of Glass with Incipient Crizzling

In a previous publication 1 we have discussed glasses showing incipient crizzling, that is, glasses in the earliest stages of crizzling. This condition threatens many pieces of European, East Asiatic, and American glasses manufactured between the seventeenth and nineteenth centuries. Examples exist