Can you help me ID these? Found a solid vein of coal near my creek after finding random rocks in the yard. Many look like they have gold in them. Some look like gem stones and some raw diamonds. I did a water test on those and with a similar size piece of quartz dropped symataniously in a large jar of water the R D ?? hit the bottom first. .03 of a second on my stop watch. I'll try to post 3 pics of each in this album. Please take a look and comment any advice, guesses or facts 🙂 Thank you in advance.