Obsidian beads are formed from a naturally occurring volcanic glass. Pure obsidian is usually very dark in colour. A popular type of obsidian bead, snowflake obsidian is formed when crystals of cristobalite form in the black glass creating a pattern very much like snowflakes. This produces a decorative effact which is ideal for making jewellery. Obsidian is said to be helpful for gaining insight into problems. Use obsidian semi precious gemstone beads to create your own beautiful jewellery!