Amazonite

Amazonite has a powerful filter action. At a physical level, it blocks geopathic stress and protects electromagnetic pollution. At a mental level, it filters the information passing through the brain and combines it with intuition. This is an extremely soothing stone. It calms the mind and feeling of nerves, balances masculine and feminine energies and many aspects of the personality. It is a stone to help you see both sides of a problem or different points of view. Amazonite soothes emotional trauma, alleviating worry and fear and dispels negative energy and aggravation. 

These chunks of Amazonite are from Brazil, and measure 2"-3" in length.