Geology is the perfect guide for any nature enthusiast. It will help you learn geological processes, the differences between rocks, minerals and gemstones, the most common types of North American rocks and minerals and the best rockhounding locations. The guide also reviews the most common North American fossils and the tools an amateur geologist should take into the field in order to positively identify different types of rocks and minerals. This handy guide is a great source of portable information and ideal for field use by novices and experts alike. Made in the USA.