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Il ciclo delle rocce per i pi...
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Smitten by Gold: The Highs...
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The Magic of Clay
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Symphony in C: Carbon and the...
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Collecting Rocks, Gems And...
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Rocks & Minerals
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Rocks, Gems, and Minerals of...
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Introduction to Mineralogy...
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Uplands and Birds
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Rockhounding New England: A...
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Eyewitness Workbooks Rocks &...
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Care and Conservation of...
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Egeran's Mountain Activity...
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Rockhounding Idaho: A Guide...
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A Rainbow of Rocks
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Rocks and Minerals Sticker...
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Fossils for Kids: An...
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Rockhounding Utah: A Guide To...
William A. Kappele,
Gary Warren
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Nature Coloring Book!
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How Long Does It Take to Make...
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