Hematite from Marion County, Oregon, USA
USA | |
| Bargar, K.E., Oscarson, R.L. (1997) Zeolites and selected other hydrothermal minerals in the Cascade Mountains of northern Oregon. Open-File Report Vol. 1997 (97-100) US Geological Survey doi:10.3133/ofr97100 |
[var. Specularite] (2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
[var. Specularite] (2005) Mineral Resources Data System (MRDS), US Geological Survey. |