All of our Rocks are 100% Genuine Specimens & come with a Certificate of Authenticity.

Specimen: Lewisian Gneiss

Type: Rock

Location: UK

Scale cube=1cm: Full sizing please see photo

At 3 billion years old Lewisian Gneiss is one of the oldest rocks in the world and the oldest in the UK. This Gneiss is collected from the Isles of Lewis, Harris, Skye and Mull, and also found on mainland North West Scotland.

The Lewisian Gneiss complex is a mixture of many minerals including Quartz, Feldspar and Epidote with a rich history of volcanic and metamorphic events.

**The mineral is a carefully chosen piece, with a photo that shows the actual specimen you will receive. **