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USA | |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Ostrander, C. W. & W. E. Price Jr. (1940) Minerals of Maryland: Natural History Society of Maryland, 92 p. |
| Ostrander, C. W. & W. E. Price Jr. (1940) Minerals of Maryland: Natural History Society of Maryland, 92 p. |
| Ostrander, C. W. & W. E. Price Jr. (1940) Minerals of Maryland: Natural History Society of Maryland, 92 p. |
| Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 pp. |
| Beard, R. (2015) Rockhounding Delaware, Maryland, and the Washington, DC Metro Area. Chapter 33: 125-126 |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Minerals of maryland (1940) Ostrander & Price, JR. |
| Stuart Herring |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Specimens in collection |
| Stuart Herring |
| Roswell Miller III (1945) The heavy minerals of Florida beach and dune sands. American Mineralogist, 30, 65-75. |
| Kearns, C.A. & J.A. Nord (2016) Garnets in the Henryton pegmatite, Carroll County, Maryland: Rocks and Minerals: 91 (4): 369. |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Stuart Herring |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
| USGS : Wissahickon Formation |
| www.benitoitemine.com (2002) http://www.benitoitemine.com/benitoite/klean.shtml |
| Mines of the Washington D.C Area |
| 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. |
| cameron holden's collection |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Bernstein, Lawrence (1980) Minerals of the Washington D. C. area: Maryland Geological Survey Educational Series 5, 148 pages. |
| Beard, R. Rockhounding Delaware, Maryland, and the Washington, DC Metro Area. Chapter 75: 251-253 |
| Cordua, Bill (1969) Mineralogy of a newly exposed granite near White Oaks, MD: Rocks and Minerals: 44 (2): 114-115. |
Owings Mills, Baltimore County, Maryland, USA