Obsidian & Turquoise Howlite - 10mm.
Obsidian is the bodyguard of the soul, bringing a strong presence and powerful grounding energies. It absorbs negative energies, soothing mental stress and tension and encourages mental and spiritual growth. Obsidian is a magnifier boosting energies of crystals around it.  Turquoise Howlite  stills the mind and is excellent for sleep and meditation as it calms negative energies and unburdens an over-active mind helping to regain emotional balance. It strengthens memory and instills a need for knowledge.