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McQueen, David R.

About the author

Cobalt, Economic geology, Maps and atlases, Metallic mineral resources, Natural resource assessment, Mineral deposit areas, Portable Document Format, Cobalt
Preliminary map of cobalt occurrences in the conterminous United States

Scanned image of map drawn at 1:5,000,000 scale, projection probably Lambert Conformal Conic, monochrome.

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