Agate slices are so pretty, and watercolor is the perfect medium for capturing the color, translucency, and texture of these stones. These slices are easy to create and a lot of fun!
Tutorial via delineateyourdwelling.com:
Materials you’ll need:
Watercolor paper (I prefer 140 lb)
Painters or Masking tape
Watercolors (tube or pan colors work)
Brushes – at least a large and small round