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[–] 1 pt

glass is a crystal. its essentially quartz. and liquid crystals already exists in Liquid Crystal Displays. i guess the old physicists still use Cathode Ray Tubes.

[–] 1 pt

Glass is not a crystal. It is amorphous. From the article. Solids are highly organized structures. They include crystals, like sugar and salt, with their millions of atoms lined up in a row, explains Mark Ediger, a chemistry professor at the University of Wisconsin, Madison. "Liquids and glasses don't have that order," he notes. Glasses, though more organized than liquids, do not attain the rigid order of crystals. "Amorphous means it doesn't have that long-range order," Ediger says. With a "solid—if you grab it, it holds its shape," he adds.

[–] 1 pt

But what is glass? its SiO². thats Quartz. Quartz is the definition of a crystal and the terms are sometimes used interchangeably.

glass doesnt flow. maybe soda-lime glass acts differently but i doubt it. pure glass is also pure Quartz and thats definitely a crystal

[–] 0 pt

Glass is not quartz. It is an amorphous solid and does not have a regular pattern for the alignment of the atoms required to be a crystal.