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USA | |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| Hansen, Wallace R. (1956). Geology and mineral resources of the Hudson and Maynard quadrangles, Massachusetts, USGS Bulletin 1038. |
| (1917) Geology of Massachusetts and Rhode Island. Bulletin Vol. 597. US Geological Survey doi:10.3133/b597 |
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| P Cristofono collection , 2009 |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| Shaub, B. M. (1941): Occurrence and Origin of Babingtonite and Other Minerals From Quabbin Aqueduct, Massachusetts (American Mineralogist 26:121-129.) |
| Nourse, Henry Stedman: History of the town of Harvard, Massachusetts 1732-1893 |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| [var. Rose Quartz] Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| Robinson,1978. Bedrock Geology: Pepperell, Shirley, and Townsend Quads. and Part of Ayer Quad., Mass. and NH |
| Cristofono, P. (2014) Rockhounding New England: A Guide to 100 of the Region's Best Rockhounding Sites. Morris Book Publishing. |
| Jackson, C.T. (1834) An Account of theΒ ChiastoliteΒ or Macle of Lancaster. Boston Journal of Natural History, Vol. 1, 55-62. |
| P. Cristofono colelction |
| Dale, 1910. Supp. Notes on the Commercial Granites of MA |
| Billings, M. P. and Wolfe, C. W. (1944): Spodumene Deposits in the Leominster-Sterling Area (USGS Open-File Report 45-88) |
| [var. Smoky Quartz] P. Cristofono collection |
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| P. Cristofono collection, 2012. |
| P Cristofono collection |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| Robinson, Samuel (1825): A Catalogue of American Minerals, with Their Localities, p 58. |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| P. Cristofono collection, 2012 |
| P Cristofono collection, 2008 |
| P. Cristofono collection |
| Daniels, George Fisher (1892). History of the Town of Oxford, Massachusetts, p. 232 (ref. an article in Worcester Spy, Dec 28, 1890) |
| (1917) Geology of Massachusetts and Rhode Island. Bulletin Vol. 597. US Geological Survey doi:10.3133/b597 |
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| Dana, James D. (1844): A System of Mineralogy, 2nd edition. |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| [var. Amethyst] Betts, John (n.d.) John Betts website listing. |
| [var. Amethyst] Betts, John (n.d.) John Betts website listing. |
| Richmond, Wallace E., Gonyer, F. A. (1938) On pollucite. American Mineralogist, 23 (11) 783-789 |
| (1917) Geology of Massachusetts and Rhode Island. Bulletin Vol. 597. US Geological Survey doi:10.3133/b597 |
| Crystals up to 2mm |
| Billings, M. P. and Wolfe, C. W. (1944): Spodumene Deposits in the Leominster-Sterling Area (USGS Open-File Report 45-88) |
| Marvin, Abijah P. (1879). History of Worcester county, Massachusetts, vol. 2. |
| Barker, 1962. Cordierite Garnet Gneiss and Associated Microcline-Rich Pegmatite at Sturbridge, Massachusetts and Union, Connecticut in AmMin 47, July-August 1962 |
| USGS Open File Report 45-63 |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| P Cristofono collection |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| Palache, Charles, Gonyer, F. A. (1932) On babingtonite. American Mineralogist, 17 (7) 295-303 |
| Dale, T. Nelson (1910). Supplementary Notes on the Commercial Granites of New England (in Contributions to Economic Geology, USGS Bulletin 470) |
| Jackson, 1840: Geological and Agricultural Survey of the State of Rhode Island, p. 73.) |
| P. Cristofono collection, 2012 |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| [var. Smoky Quartz] Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| Perry, J.H., Emerson, B.K. (1903) The Geology of Worcester, Massachusetts. Worcester Natural History Society, 166 pages. |
Kidder Lane amethyst locality, Southborough, Worcester County, Massachusetts, USA