As a child I was an avid rock collector (no joke, I actually have a rock collection), so naturally I would be totally obsessed with all pretty rocks. Geode necklaces, however, have caught my special attention. I think they are so beautiful and I love every rock's uniqueness. You will find the rocks in all colors, shapes and sizes. I particularly love the ones that have a silver finish around the edge and a silver chain. I also like the stones that are hollowed out with crystals in the middle, such as the one above. You can find them all over Etsy. This particular image was taken from the solisjewelry shop on Etsy, but there are dozens of great sellers. I have seen geode rings as well that are really fantastic.