It might appear to be a thermite kit at first glance, but this mixture won't do anything. You need metallic aluminum plus iron oxide to make thermite. A mixture

It might appear to be a thermite kit at first glance, but this mixture won't do anything. You need metallic aluminum plus iron oxide to make thermite. A mixture of powdered aluminum oxide and iron oxide is about as inert a mixture as you can make. It will reliably snuff out burning magnesium ribbon.