Astrophyllite (potassium sodium iron manganese titanium silicate hydroxide) is a rare mineral found in alkaline igneous rocks that forms star- shaped aggregates. This specimen is from Khibina,Kola Peninsula,Russia | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Land, Martin |
Bildgröße: | 4795 px × 3661 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |