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Gemstones : a concise reference guide
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Gemstones of the world
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Rock and gem
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Rocks, minerals and gems
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My book of rocks and minerals
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Identifying rocks and minerals : the new compact study guide and identifier
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Crystal & gem
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Rocks, gems, and minerals
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An illustrated guide to rocks & minerals
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Lapidarium : the secret lives of stones
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Crystal & gem
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The gem kingdom
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Bling! : 100 fun facts about rocks and gems
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The stone witch of Florence
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Rocks
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Rocks and minerals
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Talking rocks and minerals : fact-packed guide to geology
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Eyewitness: Rock & Mineral
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Minerals of the world
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The world encyclopedia of fish & shellfish & other aquatic creatures : a natural history identification guide to the diverse animal life of deep oceans, open seas, reefs, estuaries, shorelines, ponds, lakes and rivers around the globe
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Identify trees and shrubs by their leaves; a guide to trees and shrubs native to the Northeast
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Treasures of the Earth : rocks, minerals, crystals, and gems
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Plants & fungi : the definitive visual guide
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Ultimate rockopedia : the most complete rocks & minerals reference ever
