Granite pegmatite. Berkshire pegmatite field. (Occasionally also called the "Reed Farm Ledge" or "Dodge Ledge", after more modern owners.)
References:
Gibbs, George. (1818). On the Tourmalines and Other Minerals Found at Chesterfield and Goshen, Massachusetts, American Journal of Science, vol. 1, pp. 346-351.
Hitchcock, Edward (1835). Report on the Geology, Mineralogy, Botany, and Zoology of Massachusetts, pp. 490-492.
Emerson, B. K. (1917). The Geology of Massachusetts and Rhode Island (USGS Bulletin 597), pp. 255-256.
Mineral List:21 entries listed. 16 valid minerals. 1 type locality (valid mineral).
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
