TY - BOOK AU - Pearre,Nancy C. AU - Heyl,Allen Van ED - United States TI - Chromite and other mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware U1 - 333.85 PY - 1960///. CY - Washington: PB - United States Government Printing Office, KW - Chrome KW - Mining and minerals KW - United States KW - Geological survey N1 - Conduct map 1: map and sections of the wood chromite mine, state line district, lancaster county, Pennsylvania; Conduct map 2: geologic map of the hillside chromite mine, chester county, pennsylvania, showing surface and accessible underground workings; Conduct map 3: geologic map of accessible parts of the major openings for chromite at bare hills, baltimore county, Maryland; Conduct map 4: mineral deposits in the southern serpentine districts of the maryland piedmont upland; Conduct map 5: map and section of accessible parts of the choate chromite mine, soldiers delight district, baltimore county, Maryland; Conduct map 6: minerals deposits in the northern serpentine districts of the Pennsylvania-Delaware piedmont upland; Conduct map 7: mineral deposits in the central serpentine districts of the maryland-Pennsylvania piedmont Upland; Conduct map 8: map and section of the line pit (lowe's) chromite mine, state line district, lancaster county, Pennsylvania-Cecil county, Maryland; Includes bibliographical references (p. 822-827) and index (p. 829-833) N2 - The geology, distribution, production, and mining development of deposits of chromite, titaniferous iron ore, rutile, talc, asbestos, magnesite, sodium-rich feldspar, corundum, and serpentine ER -