Metamorphic rocks make up large parts of Scotland, including most of our mountain scenery. They are usually beautiful rocks, often sparkly, but contain lots of strange-sounding minerals with fiendish chemistry. The technical language used to describe them can be impenetrable. Where to start? This beginners guide to metamorphic rocks will introduce the key types found in Scotland and show you how to start to understand them. It’s slated to be a gneiss talk!