All sizes are measured to the closest ish. Sorry about the Webcam Companion chit on the pics, the software that came with the microscope doesn't actually recognize it.
Got a couple new pics of some you can try to figure out. These are TINY little things left after a sluice clean out. No gold but about another 100+ tiny garnets.
No clue what this one is, 150x zoom
These 2 looked cool. No clue either, first pic, 40x second ones 150x.