This post is a guessing/knowledge game. For the first responder to correctly name all of the first three rocks, a prize awaits. This shiny, golden disk is found underground in Southern Illinois. You must respond with its commonly known name and not just correctly identify the mineral. In other words, you wouldn't identify the Mona Lisa as just a "painting." This second rather plain-jane rock has an interesting, if not common, origin. You may not be a rockhound but try guessing, anyway. You will probably be right! But, watch your step.
These two photos are of the same rock. The view by the bricks reveals how straight the rock is when seen from the front. The view below was taken on the back of our sofa. What can I say, I am a very amateur photographer! I hope it shows how the rock actually bends when placed on edge.
Finally, the prize for the winner of our Ultimate Rock Trivial Pursuit competition. No, you don't get the pot or flowers (sorry Garden Bloggers) but I will send you the little golden rock in front. Heck, I will even tell you what it is - Pyrite, aka Fool's Gold. Don't get me wrong! I'm not calling the winner a fool - I'm just a crazy fool for rocks.