Description About Mahogany Obsidian: Mahogany obsidian crystal sphere ball strong grounding stone works to bring thoughts, connected to Sacral and Root Chakras. Benefits of Mahogany Obsidian: The mahogany obsidian sphere for healing encourages strength in times of need and helps to stimulate growth on all levels. How to use: Use natural mahogany obsidian to relieve pain and improve circulation, for those suffering from depression.