Collecting and Identifying...
Baby Professor
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Geology For Kids - Pictionary...
Baby Professor
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Under the Microscope: Earth's...
Baby Professor
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Rocks, Gems and Minerals for...
Baby Professor
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Revisionary Ghana & Africa:...
Dr. David Nana Ofori, Jr.
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Top 100 Interesting Earth...
Baby Professor
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Identifying Land and Water...
Baby Professor
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Sulfur in Magmas and Melts::...
Harald Behrens (Editor),
James D Webster (Editor)
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Wandering in Rock Country:...
Tien C Lee
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Peeling The Earth Like An...
Baby Professor
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The Process of Weathering &...
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Rocks and Minerals of the...
Baby Professor
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What Is Earth's Soil Made Of?...
Baby Professor
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What Makes Earth Soil...
Baby Professor
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Guess My Age! Relative Dating...
Baby Professor
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Fundamentals of Rock Physics
Nikolai Bagdassarov
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The Earth Looks Different:...
Baby Professor
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Cutting and Polishing...
Various
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Geochemistry of Sedimentary...
J W Morse,
F T MacKenzie
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Analytic Element Method:...
David R. Steward
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The Ground Is Shaking! What...
Baby Professor
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Precious Stones and Their...
A Hyatt Verrill
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Zircon Gemstones - A...
Various
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Kaboom! What Happens When...
Baby Professor
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