Magnetite, Grace mine, Morgantown. These crystals are distinctive in that they are dodecahedral, 7 cm across. (Author: John S. White)
| Dimensions: | 750 x 563 |
| File size: | 44.86 kbytes |
| Taken on: | |
| Camera model: | |
| Shutter speed: | |
| Focal length: | |
| Aperture: | |
| Flash: | |
| ISO: |