Copper, minor chrysocolla
Knife River, St. Louis County, Minnesota, USA
Specimen 12 X 9 X 6 cm
Field of view is about 4 cm, the main rough crystal is 2.5 cm and protrudes up out of the matrix. (Author: John Nash)
| Dimensiones: | 750 x 498 |
| Tamaño fichero: | 72.76 kbytes |
| Captura: | |
| Modelo cámara: | |
| Velocidad obturador: | |
| Focal length: | |
| Apertura: | |
| Flash: | |
| ISO: |