Dumortierite is also known as "Blue Denim Stone" and is an aluminum borate silicate. The blue healing crystals are very versatile; wear them with your casual jeans or dress them up with your formal attire. Dumortierite varies in mediums to dark blue colors caused by the presence of manganese, iron and zinc. Dumortierite aids your mental capabilities in overcoming difficult situations. Dumortierite promotes positive thinking and mental discipline, especially in regard to learning new things. This stone enhances organizational abilities. Dumortierite helps open the Third Eye and Throat Chakras.