Chromite from selected localities.
USA | |
| Rocks & Min.: 19:148. |
| Ref: Minerals of the Washington, D.C. Area |
Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. | |
| Rocks & Min.: 20:473. |
Robert C. Smith, II, Ph.D, P.G.; Pearre, N. & A. V. Heyl (1960) Mineral deposits in serpentine rocks of the Piedmont Upland, Maryland, Pennsylvania and Delaware: U. S. Geological Survey: Bulletin 1082K: 707-833.; Stuart Herring |