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Agate Hunting Made Easy
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Finding Gold in Colorado: The...
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Rockhounding for Beginners:...
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Rocks, Gems and Minerals: A...
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Gemstones: A Concise...
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Rocks & Minerals
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Dig and Discover Geodes
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Feldspar Mineralogy
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Gem Cutting: A Lapidary's...
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Pyroxenes
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Transformation Processes in...
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Learning about Rocks
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Reactive Transport in Porous...
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Minerals of Georgia: Their...
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Hans-Rudolf Wenk,
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Rocks and Minerals: An...
Evelyn Mervine
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Essentials of Igneous and...
B. Ronald Frost,
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Gold Placers and Mineral...
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Geochemistry
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