Hand sample of pegmatite, a coarsely grained intrusive igneous rock with a composition similar to granite. Pegmatite has phaneritic texture; mineral grains are of nearly equal size and are visible to the naked eye. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Schneider, Mark A. |
Bildgröße: | 4256 px × 2848 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |