Gallery

Mylonite, Outer Hebrides Thrust Zone. Photo, J Mendum

Garnet schist, Inverness-shire. Photo, BGS, P104081

Microcline schist, Inverness-shire. Photo, BGS, P104092

Staurolite-muscovite schist, Shetland. Photo, BGS, P104091

Folded gneiss, Shetland. Photo, D Fettes

Augen gneiss, Shetland. Photo, D Fettes

Lewisian gneiss, Outer Hebrides. Photo, D Fettes

Garnet anorthosite, Outer Hebrides. Photo, J Mendum

Granite gneiss, Inverness-shire. Photo, A Harris

Norway fold

Lewisian gneiss, Outer Hebrides. Photo, BGS, P008291

Migmatitic gneiss, Nairnshire. Photo, BGS, P220399