Alabaster glass. Opalised (clouded) glass, appearance like porcelain, especially used for lamp shades.

Alkalines. Components for the glass mixture consisting of sodium-potassium compounds (soda ash etc.). Are considered as flux materials for lowering the high melting temperatures of the limestone and silica sand.

Altdeutsches Glas (Old German glass). Cast glass, coloured, with deliberately induced streaks, partially structured rhombically.
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Amalgam. Mercury-metal alloy with gold for gold decorations on glass. Used for centuries with tin in the mirror industry. Though now prohibit for work safety reasons. Sometimes also used for glass Christmas tree decorations.

Annealing. Slow heating up of new furnaces.

Antique sheet glass. A type of sheet glass with bubbles and streaks. These are deliberately induced as with bubble and cellular glass in the hollow glass production. It can be hand blown, drawn or also cast. Many times it is colourfully decorated and is used as glass manufactured or refined artistically.

Art Nouveau is a style enfolding all kinds of artistic expression from the last decade of the 19th century until the beginning of the 20th century. It replaced the so called historic style (historism). The design and ornamentation of glass was especially influenced and shaped by the Art Noveau style. Nowadays with the current nostalgia trend this style is popular again, mainly among collectors. The most famous representatives of the Art Noveau style were Emile Galle, Louis Comfort Tiffany, New York, Ferdinand von Poschinger, Theresienthal, Karl Koepping, Dresden / Berlin and Anton Daum, Nancy. basicseminar 2004 51