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.

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Nappy
Glass Dictionary Term

In the United States, a small serving dish. nappies nappys Cut Nappy

Natron
Glass Dictionary Term

Sodium sesquicarbonate, originally obtained mainly from the Wadi el-Natrun, northwest of Cairo. It was commonly used by Roman glassmakers as the alkali constituent of batch.

Nécessaire
Glass Dictionary Term

(French, “necessity”) A traveling case containing a drinking glass and a knife, fork, and spoon. necessarie necessaries Nécessaires Necessaires

Mold blowing
Glass Dictionary Term

Inflating a parison of hot glass in a mold. The glass is forced against the inner surfaces of the mold and assumes its shape, together with any decoration that it bears. mold-blowing mold blown mold-blown

Mold pressing
Glass Dictionary Term

Forcing hot glass into an open or multipart mold by means of a plunger. mold-pressing mold pressed mold-pressed

Monteith
Glass Dictionary Term

A large bowl to contain ice water for cooling wineglasses. The bowl has a scalloped rim. Wineglasses were suspended in the scallops by their feet so that their bowls could be cooled in the water. Monteiths, usually of silver but sometimes of glass, were popular in the late 17th and 18th centuries.

Mosaic
Glass Dictionary Term

A surface decorated with many small, adjoining pieces of varicolored materials, such as stone or glass. mosaics Mosaic Glass Tabletop

Mosaic glass
Glass Dictionary Term

Objects made from preformed elements placed in a mold and heated until they fuse. The term “mosaic glass” is preferable to “millefiori,” except in the case of Venetian or façon de Venise glass. glass mosaics mosaic glasses millifiori millefiore millefioris Millefiori Mosaic Glass Bowl

Milled threading
Glass Dictionary Term

Decoration consisting of a trail (thread) that has been closely notched either by the use of a runner such as a roulette or by repeated indentation with the edge of the jacks. milled thread milled-thread Ring Beaker (Ringelbecher)

Mirror monogram
Glass Dictionary Term

A monogram written in such a way that each letter is reversed to produce its mirror image, the letter and its image being combined to give a symmetrical ornamental form. mirror-monogram mirror-monogramed mirror-monogrammed mirror monogrammed mirror monogramed mirror monograms Goblet with Royal Arms

Moil
Glass Dictionary Term

The unwanted top of a blown object. When the last stage in the forming process is the removal of the object from the blowpipe, the result is a narrow opening that almost certainly is not what the glassblower desires. After annealing, therefore, the top of the object is removed, usually by cracking

Molar flask
Glass Dictionary Term

A small flask standing on four very short feet resembling the roots of a tooth. The molar flask is a characteristic type of ninth- to 14th-century Islamic perfume bottle. Many examples have simple wheel-cut decoration. molar-flask molar flasks moler flask moler flasks Molar Flask

Mold
Glass Dictionary Term

A form used for shaping and/ or decorating molten glass. Some molds (e.g., dip molds) impart a pattern to the parison, which is then withdrawn, and blown and tooled to the desired shape and size; other molds (sometimes known as full-size molds) are used to give the object its final form, with or

Mercury bottle
Glass Dictionary Term

A type of ancient Roman mold-blown bottle with a tall body of square or polygonal cross section, the underside of which bears a representation in relief of the god Mercury. Mercury, the messenger of the gods, was associated with commerce. mercury bottles mercury bottle Base of 4-sided Bottle

Merese
Glass Dictionary Term

A flattened, collarlike knop placed between the bowl and the stem, on the stem, or between the stem and the foot of a goblet or similar form. mereses marese merase mareses merases Goblet

Metal
Glass Dictionary Term

A term frequently used as a synonym for glass. It is misleading because glass is not a metallic substance, and its use is discouraged.

Metallic oxide
Glass Dictionary Term

The oxide of a metal. Oxides can be used to color glass and enamel, or to produce lustered or iridized surfaces. The resultant color depends primarily on the oxide used, but it can be affected by the composition of the glass itself and the presence or absence of oxygen in the furnace. metal oxide

Mezza-forma
Glass Dictionary Term

(Italian, “half-mold”) A term applied to the process of making vertical ribs on the lower part of a blown glass object by gathering additional glass on the parison and inflating it further in a dip mold. This technique is also known as me​zza stampatura or, in Muranese dialect, meza stampaura.

Marver
Glass Dictionary Term

(from French marbre, “marble”) (Noun) A smooth, flat surface on which softened glass is rolled, when attached to a blowpipe or pontil, in order to smooth it or to consolidate applied decoration. (Verb) To roll softened glass on a marver. marvering marvered

Masonic glass
Glass Dictionary Term

A glass object decorated with emblems or inscriptions associated with Freemasons. Masonic Decanter

Matsu-no-ke
Glass Dictionary Term

A design developed by Frederick Carder (1863-1963) and registered by Stevens & Williams of England in 1884. Its distinctive feature is the presence of applied and tooled sprays of blossoms influenced by Japanese designs. Carder also used the design at Steuben Glass Works in Corning, New York,

Matte finish
Glass Dictionary Term

A non-shiny finish made by grinding, sandblasting, or exposing the surface to fumes of hydrofluoric acid. matte-finished matte finished matte-finish Frosting Blue Bowl

Melt
Glass Dictionary Term

The fluid glass produced by melting batch. melted glass melt glass

Lithyalin
Glass Dictionary Term

(from Greek lithos, “stone”) A type of glass, developed in Bohemia by Friedrich Egermann (1777-1864), that is opaque and has a marbled surface resembling semiprecious stones. Lithyalin Beaker

Lost wax casting
Glass Dictionary Term

A technique adapted from metalworking. The object to be fashioned in glass is modeled in wax and encased in clay or plaster that is heated. The wax melts and is released through vents or “gates,” also made of wax, which have been attached to the object before heating. The clay or plaster dries and

Lotus-bud beaker
Glass Dictionary Term

A first-century A.D. Roman mold-blown vessel decorated with rows of oval or almondshaped bulges. Although the bulges are usually described as lotus buds, they are probably derived from representations of knotholes in the club of the mythical hero Hercules. Lotus-bud beakers Lotus bud beaker Lotus

Loving cup
Glass Dictionary Term

A large drinking vessel with two or more handles, passed around at banquets and similar gatherings so that several persons could drink from it in turn. love cups Loving Cup

Luster
Glass Dictionary Term

(1) A shiny metallic effect made by painting the surface with metallic oxides that have been dissolved in acid and mixed with an oily medium. Firing in oxygen- free conditions at a temperature of about 1150°F (600°C) causes the metal to deposit in a thin film that, after cleaning, has a distinctive

Maigelein
Glass Dictionary Term

(German) A type of small hemispherical cup on a base with a kick, usually with vertical or swirled ribs,  made in Germany in the 15th and 16th centuries. majelen magalain maigelien Palm Cup (Maigelein)

Mandrel
Glass Dictionary Term

In glassworking, (1) a lathe shaft with a hollow end, designed to receive spindles; (2) a metal rod around which beads and other small objects can be formed. mandrels mandral mandrals mandrel-wound mandrel-work

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