Also called White Pyrite. Marcasite inspires relaxation, reflection, spiritual development, focus and clarity. It encourages past life recall and awakens ancient memories. Silver-gray metallic is an iron ore which is iron oxide (like Hematite). Marcasite is iron sulfide. One of the most grounding of all stones (Root Chakra.) Condenses scatteredness, fuzziness into mental clarity, concentration, memory, practicality, helps study, bookkeeping, detail work, sound sleep. Confidence, will power, boldness. Egyptians used also to calm hysteria and anxiety. Yang. Helps us adjust to being physical. Spleen, blood, cleanse. Can deflect. Regroups after jet lag, stress, birth, anesthesia.