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

clear glass cup on white table
clear glass cup on white table
person holding clear wine glass
person holding clear wine glass
purple diamond shaped glass decor
purple diamond shaped glass decor
water droplets on clear glass
water droplets on clear glass
a group of pieces of glass in the dark
a group of pieces of glass in the dark
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
a bunch of random objects flying in the air
a bunch of random objects flying in the air
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
clear drinking glass on gray surface
clear drinking glass on gray surface
a black background with a bunch of shiny objects
a black background with a bunch of shiny objects
photo of clear glass window
photo of clear glass window
white flower in clear glass vase
white flower in clear glass vase