Blue/Green obsidian is a man made volcanic glass. It combines the qualities of the blue obsidian and green obsidian and further promotes stimulation of the heart and throat chakras concurrently to enable one to speak from the heart and to understand communication with the heart. it has also been used to assist in energy transfer during reiki healing, to increase spiritual awareness via the creation of balance between the mind, body, and spirit, and assist one in gentle communication with others. In addition, it has been used to assist in the assimilation of vitamins A and E, to ameliorate skin disorders, and to enhance night vision.