• Question: what is glass made of

    Asked by Black dragon to Kerry, Alex, Ali on 19 Nov 2014.
    • Photo: Alex Pool

      Alex Pool answered on 19 Nov 2014:

      Glass is made by melting together several different minerals at very high temperatures – about 1700°C. Sand is the main ingredient which contains silica. and this is combined with soda ash and limestone and melted in a furnace. Other materials can be added to produce different colours of glass.

    • Photo: Alison Thomson

      Alison Thomson answered on 19 Nov 2014:

      Glass is made from a variety of minerals that are all melted together. These minerals are silica (like sand), soda ash, and limestone. They’re all melted together at about 1700˚C

      Good question!

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