Black 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. Obsidian draws out mental stress and tension. It stimulates growth on all levels, urging exploration of the unknown and opening new horizons. Brings clarity to the mind and clears confusion. Use Black Obsidian during meditation to find a creative way through problems. It is helpful in developing intuition and grounding you to the earth, releasing negative energies that result in restlessness, irritability, and nervousness.
 
Hematite
Helps to absorb negative energy and calms in times of stress or worry. Hematite is a very protective stone and is great to carry to help you stay grounded in many situations. Hematite is also good for working with the Root Chakra, helping to transform negative energies into a more positive vibration. Those in relationships can benefit from the cooperation vibe coming from Hematite. Carry Hematite when in need of balance and equilibrium, or when having difficulty focusing energies. Hematite is also said to be useful in legal situations, and is thought to strengthen self-confidence.
 
Blue Tigers Eye
A very soothing stone as it aids in reducing stress, increasing calm and easing anxiety. ... Blue Tiger Eye brings a "go with the flow" attitude, aiding in relief from fears, phobias and hot tempers.