Funny you would say that. I was out testing my metal detector in the back garden. I went across a couple of piles of giant flint rocks, white granite and some of the spacer rocks that I picked from some recycle construction skips from work. Got a few positives on the black spacer rocks. They had a few quartz veins in them. Found some golden glitter, of course happened to be pyrite (fools gold, apropos here I guess). I did have them xrf'd, came up with Fe, Zn and think there was alittle Ti. I'm going to go back again and screen shot the xrf screen. I'll post them here just for fun. I think they were much better than many spec stocks that I come across. Maybe I should use them as rock samples to start a new company. Lol.