This is a pretty piece that makes a quiet statement. Black glass beads are suitable day or night (this looks fabulous with white or denim) and the snowflake obsidian adds layers of visual interest. All obsidians are formed as a result of volcanic eruptions. In the case of snowflake obsidian tiny crystals of other minerals (often quartz) cool and solidify so rapidly they form inclusions, or "snowflakes". No 2 stones are alike. This amazing work of art is often used for purifying, centering, and balancing body, mind, and spirit. It is recommended that this stone be worn as jewelry, since the benefits are most noticeable when touching the skin.