The Sahasrara, also called the crown chakra, is located exactly in the crown of the head. It is the connection with spirituality, your higher self and divinity. It is the entry point for any type of energy that penetrates your body and circulates through the other chakras.
Made of sun stone, flurine, amethyst, pink crystal, pebble
Old teachings describe man as being composed of a physical body and an etheric (subtle) body.
The connection between the physical body and the subtle body is accomplished through the chakras (in the Sanskrit "chakra" means "wheel"). The chakras of the human body are energetic vortices (spirals). There are 7 main chakras through which energy (light) circulates. They are disposed along the spine - from the head to the base of the spine.