I need to seperate oxygen from this Si2O3, which is a rock I think. The melting point of Silicon is 1800, and boiling point is 3200 if that helps. How do I do this? Is there something I could react it with that give me what I want? The goal is gaseous oxygen. Si2O3 is stable, so its not going to want to react, I think this goes against the idea of entropy?