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Petoskey Stone: Finding,...
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The Earth Book for Kids: An...
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Crystal Healing: The Science...
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New York Rocks & Minerals: A...
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The Wonder of North American...
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Agates of Lake Superior...
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Rock Hound's Logbook & Journal
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Lake Superior Rocks & Minerals
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Agates of Lake Superior:...
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Arizona Rocks & Minerals: A...
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