I HAD to bring this gorgeous Norwegian #rock face with me from the bird site :)

This rock face was likely #gneiss, a foliated #metamorphic rock where light minerals and dark minerals form in alternating bands due to high heat and pressure. This rock was further complexly folded and refolded during continental collisions and mountain building.

The rock face also has an unusual & beautiful texture caused by the more erodible bands partially eroding.

More here: https://the-geophysicist.com/caledonian-folding-in-saltstraumen