Appreciate the beauty of seeds and soil by creating a decorative necklace or to wear or bracelet make a small hanging or mobile using different types of clay beads and polished beans, About the different clay beads: White Beads: Made from Devon ball clay formed from eroded granite from the Devon Moors over millions of years. Black Beads: Rich in lignite, created from the tropical vegetation that once thrived in the Bovey Basin. Beige Gritty Beads: Rich in sand, originating from ancient swamps. Red Beads: Made from our mineral and iron-rich clay soil, famous for its rich colour.