Biotite mineral samples. This phyllosilicate mineral contains potassium,iron and magnesium,as well as fluorides,within an aluminosilicate lattice. It forms crystalline sheets and flakes,and is usually a greenish dark brown. Here,flakes of pure biotite have been laid out on a sheet of paper,and a ruler (bottom right) is shown for scale | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5138 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |