Magnetite, Grace mine, Morgantown. These crystals are distinctive in that they are dodecahedral, 7 cm across. (Author: John S. White)
Dimensiones: | 750 x 563 |
Tamaño fichero: | 44.86 kbytes |
Captura: | |
Modelo cámara: | |
Velocidad obturador: | |
Focal length: | |
Apertura: | |
Flash: | |
ISO: |