D diogofcr Member Messages 122 Location Santiago do Cacem, Setubal, Portugal Jul 7, 2017 #21 Yeah I also saw that glass contains lots of silica like 75% or more. I mean if glass is made of sand it will contain lots of silica when it breaks down. Atleast that is what we learned in geology this year at school :P
Yeah I also saw that glass contains lots of silica like 75% or more. I mean if glass is made of sand it will contain lots of silica when it breaks down. Atleast that is what we learned in geology this year at school :P
