Reply #45: From my Google search, I see plenty of orangish molten aluminum

[Bolo Boffin]

And I found your pictures too, so that make me think, "Hey, you did a Google image search, too!" Did you?

Anyway, go Google "molten aluminum". You'll find the pictures too.

Now, aluminum gets that orangy color only when it's hot enough. The volume of the final gush of molten metal led NIST to conclude (on page 39 of Appendix 5) that the aluminum had pooled on a floor slab. When the slab fell, that's when that aluminum gushed out. And all that time it spent pooled in that inferno, it was taking in the heat.

So saying that was molten aluminum is perfectly reasonable.