1) No element was created on Earth, very short version is that they all come from Big Bang or from dead stars. Elements heavier than iron can only be created in exploding Supernovas.
But yes- they most likely screwed up their testing..
Correct but I wasn't going back that far, but if we're gonna nit pick then I guess it formed in the Big Bang when all things were created.
There are two processes to create aluminum. The aluminum we see used in production of many things, does not occur naturally.
One process requires the element alum. The other process requires bauxite.
Aluminum does indeed occur naturally, number 13 on the periodic table of elements
The processe doesn't create aluminum, it refine it from bauxite ore
Just like iron is extracted (mainly) from iron ores such as Magnetite and Hematite