About glass
Glass is a non-crystalline, often transparent amorphous solid, that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling (quenching) of the molten form; some glasses such as volcanic glass are naturally occurring. The most familiar, and historically the oldest, types of manufactured glass are "silicate glasses" based on the chemical compound silica, the primary constituent of sand. Soda–lime glass, containing around 70% silica, accounts for around 90% of manufactured glass. The term glass, in popular usage, is often used to refer only to this type of material, although silica-free glasses often have desirable properties for applications in modern communications technology. Some objects, such as drinking glasses and eyeglasses, are so commonly made of silicate-based glass that they are simply called by the name of the material.

Glass

white daisy on clear glass cup
white daisy on clear glass cup
architectural photography of glass building
architectural photography of glass building
leafed plant on glass
leafed plant on glass
clear wine glass with water
clear wine glass with water
clear wine glasses on white table
clear wine glasses on white table
six piled clear shot glasses
six piled clear shot glasses
photo of clear glass window
photo of clear glass window
clear drinking glass on gray surface
clear drinking glass on gray surface
white flower in clear glass vase
white flower in clear glass vase
clear wine glass
clear wine glass
silver and black glass decor
silver and black glass decor
three clear drinking glasses
three clear drinking glasses
three drinking glasses
three drinking glasses
water drops on glass surface
water drops on glass surface
architectural photography of glass building
architectural photography of glass building