Green kryptonite has been used in a wide range of manners. Other uses Using kryptonite in combination with electricity, heat, or other media can cause numerous side effects among normal human beings. Kryptonite seemingly possesses a variety of chemical characteristics and can be readily formed into all three states of matter. It occurs naturally in the solid mineral state. However, it can be readily melted into liquid and mixed with other solutions, and can also be vaporized into a fine mist or gas. Commonly used to protect against Kryptonians.