|
USA | |
| Nash, Alanson (1827): Notices of the Lead Mines and Veins of Hampshire County, Mass. and of the Geology and Mineralogy of that Region (American Journal of Science and Arts vol. 7, pp. 238-270.) |
| Smith, Samuel Francis (1880): History of Newton, Massachusetts, p. 14. |
| Rocks & Min.: 21:75. |
| Matthew R. Kimball Collection |
| Matthew R. Kimball Collection |
| Michael W. Kieron collection |
| Warren, Charles and Sidney Powers (1914): Geology of the Diamond Hill - Cumberland District in Rhode Island - Massachusetts. (Bulletin of the Geological Society of America25:435-476) |
| Robinson, S. 1825: A Catalogue of American Minerals, with Their Localities |
| Dale, T. N. (1910), Supplementary Notes on the Commercial Granites of New England, in: Contributions to Economic Geology, USGS Bulletin 470, 275-276. |
| Billings, M. P. and Wolfe, C. W. (1944): Spodumene Deposits in the Leominster-Sterling Area (USGS Open-File Report 45-88) |