Skip to content
Top curves

Gabbro, Isle of Skye

Gabbro hand specimen The Cuillin Hills on Skye are well known by rock climbers – the coarse, crystalline rock provides excellent grip. These mountains are made of gabbro, a dark, coarse-grained igneous rock.

The coarse grain size shows that the gabbro crystallised slowly, deep underground. It was probably intruded deep beneath a volcano that erupted around 50 million years ago.

The rocks have been cut into sharp ridges and mountain peaks, with deep U-shaped valleys now flooded by the sea, like the loch in the foreground. This scenery is typical of land that has been carved out by glaciers.

Gabbro, Cuillin Hills, Isle of Skye, Scotland

Cuillin Hills, Isle of Skye
Bottom curves