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First publication was by Marilyn Barrett in 1994, Dr. Morito 1996, Glass magazine in 2000, and in Marbles and Related Art Glass, by Mark P. Block also in 2000. Vortex marbles are a very popular style created by forming a cone at the end of a rod of clear glass, typically borosilicate or scientific glass.
German handmade marbles dating from the 1850s – 1880s on an antique solitaire gaming board Kids playing 'Kancha' Marble (toy) game near Shambhunath Temple, Nepal. A marble is a small spherical object often made from glass, clay, steel, plastic, or agate.
Several glasses are used in transparent armor, such as normal plate glass (soda-lime-silica), borosilicate glass, and fused silica. Plate glass has been the most common glass used due to its low cost. But greater requirements for the optical properties and ballistic performance have necessitated the development of new materials.
Uranium glass is used as one of several intermediate glasses in what is known to scientific glass blowers as a 'graded seal'. This is typically used in glass-to-metal seals such as tungsten and molybdenum or nickel based alloys such as Kovar, as an intermediary glass between the metal sealing glass and lower expansion borosilicate glass.
Cer-vit is a family of glass-ceramic materials that were invented by Owens Illinois in the mid-1960s. Its principle ingredients are the oxides of lithium , aluminum and silicon . It is melted to form a glass which is then heat treated to nucleate and crystallize it into a material that is more than 90% microscopic crystals.
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass.
Milk glass is an opaque or translucent, milk white or colored glass that can be blown or pressed into a wide variety of shapes. First made in Venice in the 16th century, colors include blue, pink, yellow, brown, black, and white.
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related to: transparent glass marbles identification