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Blue Dragoon Books
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Búsqueda de rocas Para...
Juan Carlos Jenaro
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Caça às Rochas para...
Humbert Amable
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Sapphire Enigma: Enchanted...
Changjuan
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Rockhounding für Anfänger...
Helge Albrecht
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Rockhounding per Principianti...
Federico La Piuma
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La Chasse au Rocher pour les...
Damien Fabien
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Discovering Gemstones and...
Riley Stone
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The Geological Record for...
William Whitaker
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The Geology of the Burnley...
Edward Hull,
J R Dakyns
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Rocks and Minerals: An...
Evelyn Mervine
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Rockhounding Colorado: A...
Gary Warren
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Paper, Scissors or Rock?...
Baby Professor
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I'm Absolutely Positive!...
Baby Professor
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Guess My Age! Relative Dating...
Baby Professor
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Out of Many Sediments, One...
Baby Professor
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Heat, Pressure and...
Baby Professor
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I'm Not That Old! Types of...
Baby Professor
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Lava Cools Then What?...
Baby Professor
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How Old is Planet Earth?...
Baby Professor
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Igneous, Sedimentary or...
Baby Professor
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Know Your Boundaries! Plate...
Baby Professor
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What Are Minerals?...
Baby Professor
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Relative vs Absolute Dating...
Baby Professor
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