Slate tiles packed in a crate. Slate,a metamorphic rock,is formed when a fine-grained sedimentary rock,such as mudstone,is subjected to high temperatures and pressures within the Earth's crust. This changes its crystal structure,and it forms a grey rock that can be split into thin,flat sheets. This property makes it a useful material for the construction industry for use as roof or wall coverings. Photographed at a quarry in north-west Wales | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5858 px × 3796 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |