Rasta golden ratio hexagonal orgonite pyramid. 4.5 x 4.5 x 4 inches. Black iron oxide with shungite powder and activated charcoal. Black tourmaline is known to be one of the most effective and powerful stones that can heal and protect you physically, emotionally, mentally, and spiritually. Black tourmaline is a piezoelectric stone, meaning that it produces electricity when it becomes heated.It's also piezoelectric, which means that it's also capable of storing electrical charge. Neutralizes emf radiation/reduces wifi radiation.