Antique Manganese Glass

The history of antique and vintage glassware.

Antique manganese glass. Make offer antique purple manganese glass 2 piece lot pre 1915 fostoria glass azure blue 2 oz shot glass 1932 1942 10 00 5 00 shipping. It is not known exactly what elements other than manganese produce what color changes. Selenium like manganese can be used in small concentrations to decolorize glass or in higher concentrations to impart a reddish color caused by selenium nanoparticles dispersed in glass. Although glass bottles have been made for a few thousand years it was not until the 19th century that bottle use became common coinciding with the industrial revolution.

Make offer fostoria glass azure blue 2 oz shot glass 1932 1942 6 tiffin thistle needle etched panel schnapps liquor cordial footed glasses. Vintage hand blown amber manganese glass centerpiece fruit bowl mid century modern overtheyearsfinds. In time it was noticed that this glass made without lead but containing manganese was found to turn a very. Sale price 56 24 56 24 74 99 original price 74 99 25 off.

American colorless pressed glass made before 1930 is said to fluoresce yellow while reproductions generally do not. Some people report that american brilliant cut glass also casts a yellow hue. 5 out of 5 stars 638 638 reviews. When used together with cadmium sulfide it yields a brilliant red color known as selenium ruby.

An antique is an object that s over 100 years old according to the experts and glassware made just past the edwardian era and easing into art deco era are now considered collectibles. Around 1915 the use of manganese was discontinued and selenium became the chemical of choice as a clarifying stabilizing agent. It is a very important agent to make pink and red glass. Antique glasses are capable of turning many other colors.

Lead has been used for centuries as a clarifying agent in making glass. Pure metallic copper produces a very dark red. Dating antique bottles requires knowledge of the evolution of bottle technology and the ability to research manufacturers and bottling companies. In the 1860 s the formulas for american pressed glass changed lead see article on flint glass began to be removed from the mix manganese was substituted to make the glass brighter and to act as a stabilizer.

Both green depression glass and vaseline glass will glow under a black light due to the uranium oxide content in the glass. Old burmese glass fluoresces a similar yellow green color. During the mid and later 1800s virtually all american glass companies were using manganese in their glass formula. Manganese for example was widely used in pre 1930s clear pressed glass to mask or decolorize impurities.

When irradiated antique glass with manganese turns deep purple.