Description
Now you can finally identify all those rocks you picked up on the North Shore during your last vacation! This small book is a handy field guide to the rocks on the beaches of Lake Superior’s North Shore. Don’t really know what an agate looks like? This book will help you with descriptions of over 17 types of agates. Beautiful illustrations by Rick Kollath depict all the rock types you may find on your excursions. Beach Profiles Tips for Rock Pickers Lake Superior’s Geologic Roots Basalt Ophitic Basalt Diabase Gabbro Rhyolite Granite Vesicular Basalt & Rhyolite Amygdaloidal Basalt & Rhyolite Porphyry Quartz Lake Superior Agate Thomsonite Chert and Chalcedony Sandstone Special Finds Jetsam, Flotsam and Junk Beaches 101 Glossary Index Titles of Interest
