This is a Green Obsidian Tumbled. Known as the emotional healing crystal.
Emotional connection: Soothes the heart and heals emotional wounds. Helps with the feeling of being compassion, heals tension between relationships, and defuses anger.
Spiritual Connection: Removes hooks from other people within your chakra and protects you from it happening again, absorbs negative energies within the environment and blocked psychic attacks.
Chakra: Heart
Zodiac: Scorpio