Sillimanite from selected localities.
USA | |
| Jackson, Charles T. (1844): Final Report on The Geology and Mineralogy of New Hampshire. |
| Rocks & Min. Vol. 71, (1996) |
USA | |
| Jackson, Charles T. (1844): Final Report on The Geology and Mineralogy of New Hampshire. |
| Rocks & Min. Vol. 71, (1996) |