If sand is coloured, then how come glass is clear?

If the stuff that makes glass has colour then why is glass clear?If sand is coloured, then how come glass is clear?
When you smash a piece of glass into many pieces, it is no longer really clear. Sand consists of tiny grains of disordered solid, with multiple rough edges. Light is refracted off those edges giving the sand color.





A pane of glass is a highly ordered crystal so that light passes through with the minimum of diffraction/refraction. Also consider water which can be made much less clear by freezing or boiling. It depends on how the matter arranges itself.





Yeah, Sodium and Chlorine are both poisonous. But combine them/change them chemically so that they are a compound and you get table salt, a completely different substance. The toxicity was due to the chemical properties, and you've produced a new chemical.








If sand is coloured, then how come glass is clear?
When you smash a piece of glass into many pieces, it is no longer really clear. Sand consists of tiny grains of disordered solid, with multiple rough edges. Light is refracted off those edges giving the sand color.





A pane of glass is a highly ordered crystal so that light passes through with the minimum of diffraction/refraction. Also consider water which can be made much less clear by freezing or boiling. It depends on how the matter arranges itself.





Yeah, Sodium and Chlorine are both poisonous. But combine them/change them chemically so that they are a compound and you get table salt, a completely different substance. The toxicity was due to the chemical properties, and you've produced a new chemical.
Sand contains many impurities, including bits of many types of rock and minerals. If you look at the pictures of antique glass, it's non-transparent and has colour impurities.





Clear glass is made out of pure silica sand (quartz crystals), which is transparent or white.
Heating can destroy colour. Also, melting the quartz can separate the coloured substances from the clear melt by causing them to sink or float.
If chlorine is such a poisonous chemical, then why are we able to ';eat'; it along with sodium?