When did these turn into an educational thing-
SO, my lovelies, time to show you some cool fossil stuff. First, Ammonites, cool right. We all love them, some fossils have been known to be nearly 8-11 feet in diameter though! Also, some of the fossils are extremely colorful and iridescent. I was too lazy to color the box like that, but feel free to use that fact as inspiration
Also, Dendritic crystals, you ever pick up a piece of limestone and find these branching black markings and think "FINALLY A FOSSIL." Not a fossil, but a very common formation of crystals. In fact so common that the limestone used for gravel on my college campus is full of them. But they are pretty, despite being common and not intrinsically valuable.
So many cool rocks are like that. Common, not valuable, probably in your backyard. Honestly one of the reasons why I took up rockhounding as a hobby (and used that to major in geology). There is probably a ruby deposit about 16 miles from your house or a cliff side filled with garnets within walking distance. Most of the minerals we gawk over in jewelry stores are just the perfect 1% of the crystals, but there are millions of imperfect rubies just lying around. You just need to know where to look.
Either way! I went on a tangent. Hope you learned something, or, whatever.