Rocks & Minerals
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Lake Superior Rocks & Minerals Field Guide
Dan R. Lynch
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Rockhounding & Prospecting: Upper Midwest
Jim Magnuson
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Unlock the Magic of Crystals
Alex Amore
ebook
Barren Lands
Kevin Krajick
ebook
Collecting and Identifying Rocks
Baby Professor
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Gem Testing
B. Anderson
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Northeast Treasure Hunter's Gem and Mineral Guide
Kathy J. Rygle
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Popular Gemology
Richard M. Pearl
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Rocks and Minerals of The World
Various Authors
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Rocks, Gems, and Minerals
Garret Romaine
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The Classification, Identification and Characteristics of Gemstones
Various Authors
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Turquoise
Dan R. Lynch
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What Makes a Rock Valuable?: Composition of Rocks Geology Picture Book Grade 4 Children's Scie
Baby Professor
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World's Greatest Natural Landmarks at a Glance Rock Formation Books Grade 4 Children's Earth Science
Baby Professor
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A Complete Guide to Lab-Grown Diamonds
Tim Colton
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A Grain of Sand
Gary Greenberg
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A Guide to Birthstones
Various Authors
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Amethyst Gemstones
Various Authors
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Argiles
Encyclopaedia Universalis
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Atlântida As Testemunhas - Parte I: A Criação da Atlântida
Walter Parks
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Beautiful Rocks and How to Find Them
Alison Jean Cole
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Boom, Bust, Boom
Bill Carter
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Carbon Is Not a Dirty Word
Samantha Jewel
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Collecting Fluorescent Minerals
Stuart Schneider
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Connecting With Crystals
Laurelle Rethke
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Crystal Healing
Dan R. Lynch
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Diamant
Encyclopaedia Universalis
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Discover Nature in the Rocks
Susan Panttaja
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Downstate New York Rock Walks
C. Russell Dunn
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El sexo y las estrellas
Andrea Valeria
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From Rough Stones to Wow
Jim Magnuson
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Gemstone Facet Cutting
Various Authors
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Geopedia
Marcia Bjornerud
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Gold Panning in British Columbia
Jim Lewis
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Help, I Have to Teach Rock and Mineral Identification and I'm Not a Geologist!
Tracy D. J. Barnhart
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Hidden Landscapes
Steven Brooke
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Jade Gemstones
Various Authors
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Kentucky Agate
Roland L. McIntosh
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La Atlántida
Walter Parks
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La Chasse Au Rocher Pour Les Débutants: Découvrez, Identifiez Et Polissez Les Gemmes, Les Minéraux e
Damien Fabien
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La magia de las piedras preciosas
Hettie-Henriette Védrine
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Mammoth Cave National Park
Raymond Klass
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Michigan Rocks & Minerals
Dan R. Lynch
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Minerals, Collecting, and Value Across the Us-Mexico Border
Elizabeth Emma Ferry
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Nature Speaks
Amanda Pennock
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Navigating Rocky Terrain
Laurie Roath Frazier
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New Mexico Rocks and Minerals
Frank S. Kimbler
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New York Rocks & Minerals
Dan R. Lynch