Chlorite Group from Skamania County, Washington, USA
USA | |
| Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155 (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Sorrell, Steve (n.d.) Personal communication. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |