Bøger af Mark Sparky Stensaas

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.