Mahogany Obsidian Tumble Stone, you will get one intuitively chosen for you based on the energy.
Healing Properties of Mahogany Obsidian.
Mahogany Obsidian holds all of the grounding and protection properties as black obsidian.  It will help protect you from negative energies, thoughts and feelings.  It is also great for detoxing and helping to strengthen the liver and kidneys.
Take peace of mind in knowing that when you purchase from me, Crystal Cath not a single penny will be reinvested into the active mining of crystals.  Helping to preserve the planet, whilst still receiving the benefits and healing energy that crystals have to offer.