Rockhounding Idaho: A Guide...
Garret Romaine
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Rockhounding New York: A...
Professor Robert Beard
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Let's Go Rock Collecting
Roma Gans
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The Practical Geologist: The...
Dougal Dixon
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The Firefly Guide to Minerals...
Rupert Hochleitner
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Across the Sand
Hugh Howey
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National Geographic Kids...
Kathleen Weidner Zoehfeld,
National Geographic Kids
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National Geographic Readers:...
Kathleen Weidner Zoehfeld
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Rockhounding Montana: A Guide...
Montana Hodges
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Simon & Schuster's Guide to...
Simon & Schuster
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A Field Guide to Rocks and...
Frederick H. Pough
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The Silent War
Dr. Ben Bova
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Rockhounding Pennsylvania and...
Robert Beard
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Arizona Rocks & Minerals: A...
Bob Lynch,
Dan R Lynch
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All About Mines: Cool Mining...
J&l Publishing,
Lindsay Hutton
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Basin and Range
John McPhee
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The Pocket Book of Stones:...
Robert Simmons
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Exploring the Geology of the...
Kevin G Stewart,
Mary-Russell Roberson
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Beautiful Rocks and How to...
Alison Jean Cole
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Nature Stories: Little Comet...
Igloobooks,
Gisela Boh?rquez (Illustrator)
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Eyewitness Crystal and Gem
DK
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Blood Trails: A Michael Flint...
Diane Capri
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Weird But True Knowitall:...
Michael Burgan
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Messages in Stone: Colorado's...
Colorado Geological Survey
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