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My Awesome Field Guide to Rocks and Minerals: Track and Identify Your Treasures (9781641525954) Replacement Lens Optolong believes the design ofBecome a rock hound with this field guide for kids ages 7 to 10 The world of rocks and minerals is massive, amazing, and full of cool new things to uncover! My Awesome Field Guide to Rocks and Minerals teaches you the skills you need to collect, identify, and catalog your own treasures. Explore 150 different rocks and minerals, and get step by step guidelines for testing and identifying the ones you encounter out in the field. Theres also plenty of