Cross polarised light micrograph of a thin section of syenite,a coarse-grained igneous rock,containing the mineral augite. Augite occurs as a black to greenish-black,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. Magification: x3 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Durham, John |
Bildgröße: | 5079 px × 3451 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |