Michigan Rocks and Minerals
With more freshwater shoreline than any other state, it's no wonder why Michigan is called the Great Lakes State. It consists entirely of two peninsulas that are separated geologically as much as they are geographically. The Upper Peninsula's volcanic rocks, many rich in copper, iron, maganese and even gold, are a sharp contrast to the flatter Lower Peninsula's layered sedimentary rocks. Both peninsulas have a rich history of mining, spanning the last 150 years, and mining continues to this day. There are wealth of good collecting sites and even more that have yet to be discovered. So, whether you're taking a leisurely drive along the Lower Peninsula's sandy shores or climbing up one of the Upper Peninsula's rugged cliffs, you're sure to find a treasure that you've identified using this book. Book created by Dan R. Lynch and Bob Lynch ISBN-13: 978-1-59193-239-0 ISBN-10: 1-59193-239-4