Answer 2:
Glass is a sub-crystalline solid, made of
the same stuff as quartz. Crystals are usually
very brittle, because in order for the atoms in a
crystal to be arranged in such an orderly way to
make a crystal, the crystal itself must be very,
very rigid. Rigidity makes for hardness, but
also brittleness. Compare this to protein
(which your skin is made out of), which is much,
much softer, but much less rigid and thus less
brittle. Click Here to return to the search form.
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