Obsidian
at-auction$ 20
- Locality
- Yellowstone National Park, Wyoming, USA
- Dimensions
- 8 x 8 x 7 cm
- Size class
- Small Cabinet
- SID
- F368
Black volcanic glass known as obsidian. Probably the only obsidian specimen I'll ever have on my auctions as the locality is
in a national park now and closed to collecting. This is out of an old collection with a specimn number affixed to the side.