Andalusite-Cordierite Thin Section Photos. Click on any photo for a larger image. Some of the larger images may be on other web sites and will open in a new window.
 

Hornfels Thin Section

AndCrdHornfels_001. And-Crd hornfels sample from the aureole of the Skiddaw granite in Cumbria, England. It was produced from a mudstone of the Skiddaw Group that was thermally metamorphosed by the Skiddaw granite around 400 million years ago. Image from the UK Virtual Microscope.