Polarised light micrograph of a thin section of syenite, a coarse-grained igneous rock, containing the mineral augite. Augite occurs as a prismatic crystal which in cross-section appears almost square or octagonal. It is a common component of basic igneous rocks such as gabbro, dolerite and basalt. Horizontal object size: 1.2 mm. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Pasieka, Alfred |
Bildgröße: | 5472 px × 3648 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |