Corundum specimen. Corundum (aluminum oxide, Al2O3) specimen. Corundum is defined to have hardness of 9 in the Mohs scale. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 5160 px × 3434 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |