Mineral resources of the Illinois-Kentucky mining district /
Excellent possibilities exist for finding deposits of fluorspar, lead, zinc, silver, cadmium, rare earths, and niobium in Illinois and Kentucky.
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| Format: | Government Document Book |
| Language: | English |
| Series: | Geological Survey professional paper ;
970. |
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| Summary: | Excellent possibilities exist for finding deposits of fluorspar, lead, zinc, silver, cadmium, rare earths, and niobium in Illinois and Kentucky. |
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| Physical Description: | iii, 15 pages : illustrations, maps ; 29 cm. |
| Bibliography: | Bibliography: pages 14-15. |