23 ct Lewisian cabochon

22 x 25 x 6mm

Lewisian comes from the Isles of Lewis, Harris and North Highlands. It is collected from the ancient bedrock of Scotland and is one of the oldest rocks in the world, up to 3 billion years old (3,000,000,000 years!). It is a unique composition of many minerals including Feldspar, Epidote and Quartz,