Melaphyre igneous rock. This rock consists of isolated feldspar mineral crystals held within dark,fine-grained igneous rock. Igneous rock is rock that has solidified from molten magma. This pattern of large mineral crystals within a matrix is known as porphyritic texture. This sample measures 110 millimetres across | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 4923 px × 3525 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |