How does sand turn into glass and how does it suddenly become transparent?

Question

Edit: Isn’t sand also made out of rocks and shells? How does that suddenly turn transparent as well?

In: Chemistry

Answer 1

So often these ELI5s can be rewritten as “can someone else google this for me?”

Answer 2

Here is a very informative video about why glass is transparent by TED-ED. https://youtu.be/VwRLIt6jgdM I hope it helps.