Black tourmaline is an incredibly protective stone. It protects from electromagnetic frequencies as well as psychic and physical protection. The great thing about this stone is that it repels negativity and harsh frequencies rather than absorbing them so its not such a big thing if you don't cleanse the stone often. If you place near your wifi router, computer or keyboard it repels harmful electromagnetic fields.
Sodalite is known for its ability to cut through the haze of mental confusion so you can tune into a state of balance and peace in the present. It also has protective and grounding qualities, blocks and clears any EMF pollution. Additionally Sodalite encourages being true to yourself and helps you stand up for your beliefs