Guys stop it with the language talk. If I want to see that I'll open up a YouTube video and look at the comments...
As for the Xycraft Aluminum (that's how it's written in the mod) apparently you can make torches out of it (with Phosphor) that are apparently better (give more light) than regular torches. At least that's what the Xycraft wiki says, I personally don't see much difference though, not enough to make it worthwhile at least.
As for Ferrous Ore, according to a wikia page google came up with it's indeed part or Thermal Expansion. No uses have been mentioned though (I've also found some in my Mindcrack world, but it seems to be quite rare).
For both ores more applications will probably come in future patches, especially Xycraft is still only in early stages of development.