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USA | |
| Beard, R. (2015) Rockhounding Delaware, Maryland, and the Washington, DC Metro Area |
| Kearns, C.A. & J.A. Nord (2016) Garnets in the Henryton pegmatite, Carroll County, Maryland: Rocks and Minerals: 91 (4): 369. |
| Mines of the Washington D.C Area |
| Mines of the Washington D.C Area |
| Ref: Minerals of the Washington, D.C Area. |
| Bernstein, Lawrence (1980) Minerals of the Washington D. C. area: Maryland Geological Survey Educational Series 5, 148 pages. |
| Beard, R. (2015) Rockhounding Delaware, Maryland, and the Washington, DC Metro Area |
| American Mineralogist (1926) 11:35-38 Ref.: Minerals in the Washington D.C. Area. |
Scaggsville, Howard County, Maryland, USA