Black Tourmaline:

Focus stone: It’s a hugely powerful stone for those who want to wear a constant cloak of protection. This stone has strong grounding forces, this jet colored stone is known for being a swallower of negative energies. It effectively helps the wearer be absolved of dark feelings, turning these anxious vibrations into a positive spin that nurtures the soul.

Black Obsidian:

Way Stone: Obsidian is truth-enhancing. A strongly protective stone, it forms a shield against negativity. It blocks psychic attack and absorbs negative energies from the environment. 

Labrodorite:

Desired Stone:  Labradorite deflects unwanted energies from the aura, and prevents energy leakage.  Labradorite creates a force field throughout the aura, protecting and strengthening the energies within and preventing others from ‘tapping in’ to your personal energy and draining you.