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| | Pumice that was folded and welded from the eruption of Newberry Caldera. The dark stuff is welded glass without bubbles. |
| Camera: SONY CYBERSHOT | Date: 6/24/01 12:16 PM | Resolution: 1856 x 1392 | ISO: 100 | Exp. Time: 1/390s | Aperture: 4.0 | Focal Length: 7.1mm |
Total images: 24 |   | Help |