Obsidian from Idaho, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| T Douglas Schonewald Collection |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Blacktail Recreation Area, Iona, Willow Creek - Caribou Mining District, Bonneville County, Idaho, USA