[pdabbadabba]

Yes, but aluminum oxidizes rapidly yet this oxidation process does not produce significant heat and light. So in this context, the independent heat/light requirement makes a difference!

[orlp]

Mill aluminium under inert gas into a powder and then release the pure unoxidized powder into the air.

My money is on some fireworks occurring.

[ivalm]

Oxidation of aluminum does produce heat and light (the reaction is exothermic). It’s just a very small and fast fire.

[kevin_thibedeau]

It does as a powder.