Fluorite crystal is a highly protective stone and is wonderful to use for mental clarity. It increases your ability to concentrate, balancing the positive and negative relationships of your mind. Fluorite helps you to see both reality and the truth behind illusion and is a popular crystal among energy healers. Fluorite is a great crystal for meditation. Fluorite crystal healing properties include protection against colds, fever, cold sores, cancer, migraine, headaches and manic depression.