Aragonite from Montgomery County, Pennsylvania, USA
USA | |
| Dana 6: 1069. |
| Sloto, Ronald A. (2019) The Mines and Minerals of Montgomery County, Pennsylvania (analyzed by author, SEM-EDS) As (uncommon) radiating acicular crystals. |
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
| Dana 6:1069. |