Blue Calcite Calcium Carbonate (CaCO3) Mohs: 3 Blue Calcite is a gentle stone so it is ideal for recuperation from illness and relaxation. lt lowers blood pressure and dissolves pain on all levels. it gently soothes the nerves and relieves panic attacks and anxiety. Blue Calcite relieves unwanted emotions. If used on the Throat Chakra helps you to communicate clearly and effectively with others especially if there is disagreement. Blue Calcite absorbs energy, filters it and then returns it back to you.