Black Obsidian Double Sided Tree of Life Necklace Beautiful handmade with love one-of-a-kind wire wrapped Black Obsidian on 18" (inch) black satin silk cord with clasp. Pendant is approximately 1 1/2" (one- and one-half inch) Wire Type - Tarnish Resistant (Red) Stone - Black Obsidian Chakra - Root Zodiac - Scorpio/Sagittarius Called the Wizard Stone Good for protection, creativity, and intuition Emotional/Spiritual - Grounding