Magnetite from selected localities.
USA | |
| Ross, Martin E. (2010): An Early Triassic 40Ar/39Ar age for a camptonite dyke in Cambridge, Massachusetts, USA (Atlantic Geology, Volume 46). |
Gleba, 1978. Massachusetts Mineral & Fossil Localities | |
Wadsworth, M.E. (1877) Notes on the Mineralogy and Petrography of Boston and Vicinity. The Intrusive Rocks in the Vicinity of Boston. In Proceedings of the Boston Society of Natural History, 19:217-238. |