Gahnite from selected localities.
USA | |
| Shepard (1837): Report on the Geological Survey of Connecticut.; Silliman, Benjamin. (1829): Discovery of Columbite in Chesterfield, Mass. American Journal of Science, s. 2, vol 16. pp. 220-224. |
Foye, W. G. (1922): Mineral Localities in the Vicinity of Middletown, Connecticut. (American Mineralogist 7:4-12). |
Chrysoberyl locality, Haddam, Middlesex County, Connecticut, USA