Muscovite mineral. Muscovite,a variety of mica,is a silicate mineral of aluminium and potassium. It is found in metamorphic rocks,like gneiss,and plutonic rocks (igneous rocks that solidify slowly under high pressure deep in the Earth's crust),like granite. It gives such rocks a slight sparkle. This sample measures 110 millimetres across | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5251 px × 3706 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |