I think this would be a great addition to the already amazing powder toy. It should melt around 660.32 °C. and can conduct electricity. its nickname could be Alum
I like the sound of aluminium it would be nice to have a conductive that would melt a low temps. because it melts low temp its liquid could glow red like cooler lava?
And you could make it so that a very high level of temperature when metal just is a few hundred degrees away from melting, it would catch on fire. (Earlier I just saw a spoon heated by the fire so much it actually ignited!) But make it so that aluminum does not ignite. I believe it is non-flammable