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?WHAT IS GLASS

المؤلف:  Max M. Houck، Jay A. Siegel

المصدر:  Fundamentals of Forensic Science

الجزء والصفحة:  p436-437

2026-08-18

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WHAT IS GLASS?

Glass can be defined as an amorphous solid. This is a hard, brittle material that is usually transparent, but which lacks the ordered arrangement of atoms (a crystal lattice) that is found in most solids. Instead, common glass is made up largely of oxides of silicon that have been doped with other materials to give it its familiar properties. The silicon oxides come chiefly from sand. The silicon dioxide matrix and the methods used to produce glass impart properties of both solids and liquids. Such substances are sometimes called fluids. If you have ever bumped into a plate glass window or been hit with a glass bottle, you know that glass is hard like a solid, yet research has shown that glass flows under the influence of gravity, albeit very slowly. The amorphous structure of glass is shown in Figure 1.

Figure 1.