Rock & MineralA picture packed, fact filled guide to the rocks beneath your feet Explore volcanic rocks, shiny gemstones, colourful minerals, ancient marble, and fallen meteorites and find out how they all came to be. From rough rocks to glittering crystals and everything in between, this stunning collection of facts and photos leaves no stone unturned. Did you know that every rock is a combination of one or more minerals? And that marble was first used in ancient