Chalcanthite from Pennsylvania, USA
USA | |
| Rocks & Minerals 81:229-234 |
| Sloto, R.A. (1989). Famous mineral localities: The Phoenixville, Lead silver mines, Chester County, Pennsylvania. The Mineralogical Record, 20(5), 369-386. |
| Sloto, R.A. (1989). Famous mineral localities: The Phoenixville, Lead silver mines, Chester County, Pennsylvania. The Mineralogical Record, 20(5), 369-386. Matrix, Fall 2003 pg.149 |
| Min.Rec.:21:103 Dana 6:1069 Dana 7:I:235,241 & II:490. |
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
| Dana 6: 1069. |