When we are feeling angry and aggressive, seeing red, as it were, we can look to Aquamarine to center our thoughts and calm our ruffled emotions. "My heart and head are in harmony," is the affirmation that represents this crystal's energy, and it's thought to help with physical issues relating to nausea and allergies. Feeling angry all the time can certainly take its toll on our appearance, and over time, this undue stress can manifest physically - we can literally make ourselves sick. Calming, protective Aquamarine is extra soothing for the signs of Aries, Gemini, and Pisces, who can easily suffer from overstimulation. Its primary chakra is the Heart Chakra, and it is useful to remember that when our hearts are clear, we can better communicate and get to the source of our suffering. Wearing the color of Aquamarine, or having it set into jewelry can make us feel its protective qualities, and shield us from the red zone.