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Jasperoid in the United States : its characteristics, origin, and economic significance / by T. G. Lovering.

By: Lovering, Tom Gray, 1921-1996.
Material type: materialTypeLabelBookSeries: Geological Survey Professional Paper; 710.Publisher: Washington : United States Government Printing Office, 1972Description: 164 p. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Estados Unidos | Rocas
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