The listing, two raw pieces of marcasite has ended.
I think they are marcasite. They look like a steel grey version of pyrite aka fool's gold.
They are approx. the size of a dime.
According to metaphysicists, marcasite (pyrite) can ground, protect, energize and enhance the mental qualities of the wearer. It is said to promote intelligence and creativity, block negative energy and generally help one think more clearly and creatively. Some believe thatit can also bestow good fortune and wealth upon the bearer!
Crystal healers believe that marcasite strengthens the lungs and increases the amount of oxygen in the blood, helping the wearer overcome fatigue. It is also thought to reduce inflammation, have a positive effect upon the circulatory and digestive systems and even assist the immune system in warding off contagious diseases.
Perfect addition to a gemstone collection or to wear for protection and health in a medicine bag.