Pyrite is a stone of energy. Rich in iron, with its brilliant golden metallic lustre and naturally cubic crystals, it has fascinated since antiquity — its name comes from the Greek pyr, fire, for the sparks it gives when struck.
 
Emotional and spiritual virtues — Pyrite combats physical, nervous and psychic exhaustion. It structures and organises the mind, eases fears and anxieties, and allows introspection — to know one's inner self and feel more at ease with one's emotions. It is an important protective stone for the etheric body, and therefore for the physical body: it creates an energy field that blocks negative-energy pollution, preventing energy leaks from the body and the aura by deflecting what is harmful. Concrete, constructive and energising, it stimulates the intellectual faculties, develops resistance to fatigue and increases the capacity for intellectual work, while strengthening the nervous system.
 
Crystal system: cubic. Formation: magmatic, sedimentary or metamorphic. Hardness: 6 to 6.5. Chemical formula: iron disulphide. Element: Earth. Chakra: solar plexus. Zodiac: Gemini, Leo, Libra.