Uhhhh...Tennessee? You're not a chemist, I presume, and neither was Wyatt, so you perhaps can be excused from not knowing this.
That's from your second link. There's no metal, as in a rivet, in there
at all! There are only oxides and/or silicates and aluminates - "ores," maybe, in the vernacular. It looks like the analysis of some rock that is kin to clay minerals, with a speck more titanium than average thrown in. SiO
2 is silicon dioxide - sand! Not normal rivit material, I'm sure you'll agree. And it makes up nearly half the sample.
You've been misled.
Edited by AdminJar, : size the image down