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Chromite and Other Mineral Deposits in Serpentine Rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware

Published Year

• 1960-1969 (1) *

Subject

• Chromium ores -- Piedmont Upland. (1) *
• Mines and mineral resources -- Piedmont Upland. (1)

Author

• Pearre, Nancy C. (1)

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