Flint stone, a type of hard, sedimentary cryptocrystalline form of the mineral quartz, has been utilized by civilizations throughout history for its ability to spark fire. Metaphysically, flint is believed to anchor the spirit into the body, enhancing physical presence and grounding. It's thought to strengthen emotional boundaries and protect against negativity. Health-wise, flint is associated with detoxifying the blood and improving the integrity of the skin, promoting overall vitality and resilience.