[Iwonda (OP)]

If you do a search on the subject, the articles you find will say that it is very rare but then when you search for photos you find what looks like nice size chunks of metal. Just how rare is native aluminum and what's the largest piece ever found?

[Bored chemist]

you find what looks like nice size chunks of metal.

Where?

[alancalverd]

Damn near impossible. The stuff oxidises as soon as you look at it. The fact that the oxide is flexible and fairly impermeable is the reason it's used for aircraft skins, but any Al found in nature is almost certainly as oxide: bauxite, cryolite, corundum or (if you're lucky) sapphire.   

[evan_au]

Any metallic aluminium you find on Earth is produced by humans.

Aluminium is produced in supernovas, but even there it will be quickly oxidised.

[Bored chemist]

Never say never.
https://en.wikipedia.org/wiki/Native_aluminium

[Iwonda (OP)]

Never say never.
https://en.wikipedia.org/wiki/Native_aluminium

Based on what I have come to know about aluminum I do feel that native aluminum sounds impossible but I do also agree that when it comes to nature, we should never say never. Nature can be a "Mother".