Black Obsidian is a very powerful cleanser and protection gemstone. It's healing properties helps with psychic smog, created within your aura and shields it's owner against negativity and low vibrational energies.
Turquoise helps it's owner to get rid of bad luck and evil energy surrounding them. It's healing properties helps it's owner by improving relationships as it's vibration boosts understanding amongst partners. It also curbs problems like alcoholism, depression, mental stress, high BP etc. Turquoise increases physical strength and boosts the immune system.