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USA | |
| Dale, N.T. (1923) The Commercial Granites of New England, Bulletin 738, United States Geological Survey, Department of the Interior, 488 pages. Dale, T.N. (1910) Supplementary Notes on the Commercial Granites of New England (in Hayes, C.W., Lindgren, W. Contributions to Economic Geology, USGS Bulletin 470). |
| Dale, T. N. (1910). Supplementary Notes on the Commercial Granites of New England (in Contributions to Economic Geology, USGS Bulletin 470). |
| Pratt, Joseph H. (1905). Zircon, Monazite and Other Minerals Used in the Production of Chemical Compounds Employed in the Manufacture of Lighting Apparatus (NC Geological and Economic Survey Bull. 25) |
| Peter Cristofono collection, 2017 |
| Am.Jour.Science 300:630-655 (October, 2000) |
| Dale, T. Nelson (1910). Supplementary Notes on the Commercial Granites of New England. (USGS Bulletin 470). |
| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. Rocks & Min.: 21:75. |
Blueberry Mountain Quarry, Woburn, Middlesex County, Massachusetts, USA