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Gain an overview of the Rocks & Minerals you're likely to encounter or study first; Gems, ores, rocks, minerals other types are covered in plain language! Photographs, diagrams and written descriptions will help you in your quest to understand the natural world. The Peterson First Guides ® are condensed versions of the Peterson Field Guides ®. 128 pages, softcover. 3.75' x 7.25'.
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