Hastingsite from Vermont, USA
USA | |
| Wolff, John E. (1929). Mount Monadnock, Vermont: A Syenite Hill (Journal of Geology, Vol. 37, No. 1, pp. 1-16). |
| Perkins Geology Museum at the University of Vermont (as "hudsonite") |
| Rocks & Min. Vol. 71, (1996) |