Also called Iceland Spar, Optical Calcite clears and activates all of your chakras, improving the flow of energy throughout your body. This stone removes any negative energy and amplifies the positive energy around you.  It removes fear and anxiety and brings optimism back into your life. Optical Calcite can help to amplify whatever intention you are projecting out into the Universe. It clears away any stagnant energy that is no longer serving you and helps to clear the path so that you can move forward with confidence. This stone is also very helpful for people who have migraines.