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Discovery Channel rocks & minerals : an explore your world handbook
Published 1999.
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An introduction to fossils and minerals : seeking clues to the earth's past
Published 2000.
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Rock formations and unusual geologic structures :exploring the earth's surface
Published 2001.
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Nature's extremes : inside the great natural disasters that shape life on earth
Published c2006.
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A collection of occasional surveys of iron, coal and oil districts in the United States, made during the last ten years
Published 1874.
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