Marcasite from Montgomery County, New York, USA
USA | |
| L Frahm collection |
| collection of Michael J. Lundquist |
Robinson, George W., Chamberlain, Steven C. (2007) Gazetteer of Major New York State Mineral Localities. Rocks & Minerals, 82 (6) 472-483 doi:10.3200/rmin.82.6.474-483 |
Benchmark Quarry, St Johnsville, Montgomery County, New York, USA