Corundum and aluminium oxide. Corundum specimen and powdered aluminium oxide (Al2O3) in a watch glass. Corundum mineral is a crystalline form of aluminium oxide, with typically some impurities. It is defined to have hardness of 9 in the Mohs scale. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 5161 px × 3438 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |