How can we trust the age of a rock? UnLock Rocks explains the ages of rocks in an easy-to-understand way, using familiar ingredients in the kitchen. The science of crystal growth, along with rock dating, unfolds in a friendly conversation. While light-hearted, the presentation of physics and geology is carefully correct. UnLock Rocks combines insights from food, physics, jewelry, geology, metallurgy, materials science, forensic science, chemistry, and beekeeping. In this book, you will explore rock formation, precious gemstones, metal casting, atom half-lives, skillful sleuthing, crunchy...