A strongly protective stone, Black Obsidian is a powerful cleanser of your aura and has many metaphysical properties that will protect you against negativity. The energy of these stones has also been know to stimulate the gift of prophecy. This stone is great in assisting you to wash away the stress and disharmony that has built up in your day to day life, ridding you of fear, anger and resentment. Each stone weighs approx 5-15g. Size and shape may vary. Stones sold individually