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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Nuppenbecher
Glass Dictionary Term

(German, “drop beaker”) A beaker decorated with large, droplike prunts, which may be drawn out into pointed projections. nuppenbechers nupenbecher nupenbechers Nuppenbecher or Krautstrunk (prunted beaker)

Obsidian
Glass Dictionary Term

A volcanic mineral that was the first form of natural glass used by humans. It is usually black, but it can also be very dark red or green; its splinters are often transparent or translucent. obsidians

Oenochoe
Glass Dictionary Term

(from Greek, “wine pourer”) A pitcher with a trefoil mouth, used in ancient Greece to transfer wine from the mixing bowl to the cup. Between the sixth and third centuries B.C., miniature core-formed oenochoes were used as perfume bottles. Oenochoes Pitcher with Trefoil Mouth

Omom
Glass Dictionary Term

(perhaps from Arabic qumqum, “sprinkler”) A sprinkler with a tall, narrow neck and an oblate spheroid body. Omoms were used in the Islamic world for sprinkling perfume. omoms omam omams

Omphalos bowl
Glass Dictionary Term

(from Greek omphalos, “navel”) A bowl with a hollow, raised boss (the “navel”) at the center. Omphalos bowls omphalo bowl omphalo bowls Bowl

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)

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

Lipper
Glass Dictionary Term

A glassworker’s tool made of wood in the shape of a cone and with a handle. It is used to form the lip at the mouth of a vessel. lippers

Opal glass
Glass Dictionary Term

Glass that resembles an opal, being translucent and white, with a grayish or bluish tinge. opal glasses opal-glass Beaker

Opalescent glass
Glass Dictionary Term

(1) A type of late 19th-century Art Glass, made by covering a gather of colored glass with a layer of colorless glass containing bone ash and arsenic or the mineral cryolite from Greenland. The parison was inflated in a mold to produce raised decoration. When the parison was reheated, the raised

Openwork
Glass Dictionary Term

Work that is perforated. Openwork in glass objects can be made by creating a network of trails, by casting (see Diatreta), or by cutting (see Cage cup). open-work openworks Grand Double Helix Diatreta

Optical glass
Glass Dictionary Term

Glass of extreme purity and with welldefined optical properties, which was originally created for making lenses and prisms. optical glasses Astrolabe

Opus sectile
Glass Dictionary Term

(from Latin, “cut work”) Decoration on a wall or floor, made by fitting together flat elements of different shapes and colors. The ancient Romans sometimes used glass to make opus sectile ornament. Opus sectiles Opus-sectile Opus-sectiles Opus Sectile

Ormolu
Glass Dictionary Term

(from French, “ground gold”) An alloy with a copper base, used for decoration. Some glass objects have ormolu mounts. ormalou ormalo Ormolu and Blue Opaline Clock

Pallet
Glass Dictionary Term

A glassworker’s tool consisting of a square piece of wood or metal and a handle. It is used to flatten the bases of vessels. pallets

Palm column flask
Glass Dictionary Term

A tall, narrow cylindrical vessel decorated at the top with stylized palm fronds. Flasks of this type were made by core forming in Egypt in the 18th and 19th Dynasties (about 1400-1250 B.C.). They were used as kohl tubes. palm column flasks palm-column flask palm-column flasks Flask Shaped like

Palm cup
Glass Dictionary Term

A shallow drinking vessel with a round base that fits in the palm of the hand. palm cups Palm Cup

Pane
Glass Dictionary Term

A piece of flat sheet glass used for glazing windows. panes pane-glass pane glass Crown glass Cylinder glass

Paperweight
Glass Dictionary Term

A small, heavy object designed to hold down loose papers. The first glass paperweights were made in the early 1840s in Venice and France, and their manufacture spread rapidly to other parts of Europe and the United States. Glass paperweights ceased to be fashionable in the early 20th century, but

Parcioffi
Glass Dictionary Term

(Italian) Jacks with blades made of wood. Parcioffis Parchioffi

Parison
Glass Dictionary Term

(from French paraison) A gather, on the end of a blowpipe, that is already partly inflated. parisons

Passglas
Glass Dictionary Term

(German, “pass glass”) A tall cylindrical drinking vessel with trailed or enameled horizontal marks. The drinker was supposed to gulp only enough to reach the next horizontal mark, and then pass the glass to the next person. If he drank too much, he was required to reach the next mark, and so on.

Pâte de verre
Glass Dictionary Term

(French, “glass paste”) A material produced by grinding glass into a fine powder, adding a binder to create a paste, and adding a fluxing medium to facilitate melting. The paste is brushed or tamped into a mold, dried, and fused by firing. After annealing, the object is removed from the mold and

Patella cup
Glass Dictionary Term

(from Latin patella, “small dish; kneecap”) A first-century A.D. Roman drinking cup with a doubleconvex profile and a foot-ring. patella cups Large Patella Cup

Pattern-molded glass
Glass Dictionary Term

Glassware that has been blown into a mold whose interior has a raised pattern so that the object shows the pattern with a concavity on the inside, underlying the convexity on the outside. Pattern molds are not used to impart the final form to the object. pattern molded glass pattern mold glass

Peachblow
Glass Dictionary Term

A type of Art Glass made by several American factories in the late 19th century. It resembled the peach bloom glaze on 17thto 18th-century Chinese porcelain such as the celebrated Morgan Vase. Most Peachblow glass had a surface that shaded from opaque cream to pink or red, sometimes over opaque

Pegging
Glass Dictionary Term

The process of pricking molten glass with a tool that leaves small, air-filled hollows. When the glass is covered with a second gather, the hollows become air traps. This technique is used to decorate knops and paperweights. peggings

Pezzato
Glass Dictionary Term

(Italian, “dappled”) A type of decorated glass developed in 1950-1951 by Fulvio Bianconi (1915-1996) for Venini & C. of Murano. The object is covered with a patchwork of rectangles of different colors, created by placing sections of flattened canes side by side on a metal plate, heating the

Phiale
Glass Dictionary Term

(from Greek phiale, “bowl” or “pan”) A broad, flat bowl for drinking or pouring libations. phiales fiale fiales Bowl

Pick-up decoration
Glass Dictionary Term

A technique whereby a hot parison is rolled in chips of glass, which are picked up, marvered, and inflated. pick-up decorations pick up decorations pick up decorations Navajo Blanket Cylinder (Zig-Zag with Horse Drawing)

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