Tourmaline is a crystalline boron-silicate-material containing elements of aluminum, lithium, magnesium, sodium, potassium, and iron. The name of this elegant gem comes from the word turmali, which was used in Sri Lanka to describe zircon. Due to a mistake, tourmalines were sent in a box marked for zircons, and the new name stuck - and was widely accepted. We now know - and love - this glossy black stone by the name of black tourmaline.
Black tourmaline is said to be able to purify one’s energy and clear out negativity and stagnation. As a stone related to the element of water, it cleans and regenerates one's power, similarly to how obsidian is said to work.
Black tourmaline works best for the two lowest chakras, the Earth Star chakra and the Root chakra; but it has many more properties than just balancing them. It is said to protect from psychic attacks and be able to transmute negativity into positivity. It is also said to be a helpful crystal for anxiety, nervousness, and repetitive thoughts: it is said to help break the vicious cycle of fear-fueled thoughts and prevent compulsive behavior. It is also said to be excellent for those who need to take a rest, reflect on their life, and pray or meditate. It's considered to be a stone of new beginnings, and is beneficial for those who conduct academic research, travel to unknown places, and seek new things in general.
Although black tourmaline is the birthstone of Capricorn, it will be appreciated by Libras as well.