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 Librarian at our Rakow Research Library.

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Wine set
Glass Dictionary Term

A decanter with matching wineglasses, sometimes with a matching tray. wine sets wine-set Decanter set with 6 glasses

Witch ball
Glass Dictionary Term

A glass globe intended to be hung in a prominent place to ward off the evil eye. witch balls witches balls witches ball witch-ball Witch ball

Yard-of-ale
Glass Dictionary Term

A type of English ale glass with a trumpet-shaped mouth, a long and narrow neck, and a small globular body. These glasses were often one yard (three feet) long. They contained about one pint and functioned like trick glasses. The yard-of-ale came into use in the 1680s and continued into the 19th

Zanfirico
Glass Dictionary Term

(Italian) A type of polychrome cane made by assembling a bundle of rods of different colors, and heating it until it is soft. The bundle is then attached to two pontils and elongated by drawing. At the same time, the bundle is twisted to produce a spiral pattern. Zanfirico, which is a synonym for

Agate glass
Glass Dictionary Term

Glass marbled with brown, blue, green, and yellow swirls in imitation of chalcedony and other banded semiprecious stones. Calcedonio Agate Vase with Cranes Flying Over the Sea

Sand-core technique
Glass Dictionary Term

A misnomer for core forming. sand-core techniques sand-core-technique sand core technique

Sand
Glass Dictionary Term

The most common form of silica used in making glass. It is collected from the seashore or, preferably, from deposits that have fewer impurities. For most present-day glassmaking, sand must have a low iron content. Before being used in a batch, it is thoroughly washed, heated to remove carbonaceous

Salver
Glass Dictionary Term

A tray for serving. At first, salvers were used primarily for presenting objects to rulers. More recently, the word is used to denote trays used for presenting letters or visiting cards, or for serving refreshments. salvers Salver Pressed in "Sharp Diamond" Pattern

Rummer
Glass Dictionary Term

A type of 19th-century English goblet, with a short stem and a square or domed foot. rummers rumer rumers Rummer

Rotary polishing
Glass Dictionary Term

The process of polishing an object with tools and an abrasive while turning it on a lathe. rotary-polishing rotary-polish rotary polish rotary polished rotary-polished

Roman foot
Glass Dictionary Term

A flangelike base formed by folding. The ancient Romans were the first glassworkers to make bases in this manner. roman feet

Rolling pin
Glass Dictionary Term

A cylindrical object, usually made of wood but sometimes of glass, for rolling out dough or pasta to the required thickness. Many glass rolling pins are friggers, with a knob at each end so that they can be suspended by a cord. rolling pins rolling-pin

Rod forming
Glass Dictionary Term

The technique of winding molten glass around the tip of a narrow metal tool or wire coated with clay or kiln wash to act as a separating agent. It is used for making narrow objects such as beads and pendants. rod-forming rod formings

Rod
Glass Dictionary Term

A monochrome segment of glass cut from a trail. rods

Rock-crystal engraving
Glass Dictionary Term

A style of copper-wheel engraving that, combined with polishing, gave glass objects the appearance of rock crystal. The style was introduced by Thomas Webb & Sons of England in the 1870s. rock-crystal engravings rock-crystal-engraving Ewer

Rock crystal
Glass Dictionary Term

Quartz (chemically pure silicon dioxide), which is usually colorless. From earliest times, glassmakers sought to imitate it. rock-crystal rock crystals rock-crystals rock cristal

Rigaree
Glass Dictionary Term

A raised band or pattern of bands, usually made by crimping applied trails. rigarees rigeree rigerees Bank with 1839 U.S. Half Dime in Stem

Ribbon glass
Glass Dictionary Term

(1) A type of first-century A.D. Roman mosaic glass that consists of ribbonlike canes arranged in parallel rows or geometric patterns; (2) a type of vetro a reticello made in Venice and at other places where façon de Venise glass was produced. ribbon-glass ribbon glasses ribbon-glasses Ribbon Glass

Ribbed bowl
Glass Dictionary Term

An ancient Roman vessel decorated with a continuous band of vertical ribs. ribbed-bowl ribbed bowls ribbed-bowls Ribbed Bowl

Rhyton
Glass Dictionary Term

(from Greek) A drinking vessel used in many parts of the ancient world. Most ancient glass rhytons are of the Roman period. They are in the form of a horn, sometimes with the head of an animal at the tip. The tip is perforated, and one drank from it by holding the rhyton above one’s head and

Reverse foil engraving
Glass Dictionary Term

A decorative technique in which gold or silver leaf is applied to the back side of a piece of glass, engraved, and protected by varnish, metal foil, or another piece of glass. reverse foil engraved reverse foil engraving reverse-foil engraving reverse-foil engraved Verre églomisé Brant Mansion, St.

Retort
Glass Dictionary Term

A vessel with a long neck, bent downward, in which liquids subjected to distillation are heated. retorts Retort

Resist
Glass Dictionary Term

A substance that resists or prevents a particular action. During the process of acid etching or sandblasting, parts of the surface are protected with a resist. Resists

Reichsadler Humpen
Glass Dictionary Term

(German, “imperial eagle beaker”) A Humpen decorated with Reichsadler, a heraldic two-headed eagle whose wings bear the insignia of the Holy Roman Empire. Reichsadler Humpens Riechsadler Humpen Riechsadler Humpens Reichsadler Humpen

Refractory
Glass Dictionary Term

A substance, usually clay with a high silica content, capable of resisting high temperatures. Furnaces and pots are made from refractory materials. Refractories

Reducing atmosphere
Glass Dictionary Term

An atmosphere in a kiln or furnace that is deficient in oxygen. Sometimes, a reducing atmosphere is created deliberately to reduce oxides to their metallic state, as in the case of luster pigments. Reducing atmospheres Reducing-atmosphere

Reactive glass
Glass Dictionary Term

A type of glass, made by Louis Comfort Tiffany (1848-1933), that changed color when it was reheated. reactive glasses reactive-glass reactive-glasses

Raspberry prunt
Glass Dictionary Term

A flat, circular prunt with an impressed design resembling a raspberry. raspberry prunts raspberry prunted rasberry prunt rasberry prunts razzberry prunt razzberry prunts raspberry-prunt raspberry-prunted Romer

Raised diamond cutting
Glass Dictionary Term

An allover pattern of raised four-sided diamonds of pyramidal form, each with a sharp apex, cut with a mitered wheel. It was produced by English and Irish glass cutters between about 1780 and 1825. raised-diamond cutting raised-diamond-cut raised-diamond cut raised diamond cut Luster Vase in "

Quincunx
Glass Dictionary Term

(from Latin, “five-twelfths”) An arrangement of five objects in a square or rectangle, with one at each corner and one in the middle, like the five spots on dice. Prunts and other motifs are sometimes arranged in a quincunx pattern. Quincunxes Quincunks Quincunxi

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