U+1F738 "🜸" Alchemical Symbol for Marcasite Unicode Character

U+1F738 "🜸" Alchemical Symbol for Marcasite is a pictographic glyph included in the Alchemical Symbols block, representing the mineral marcasite, a polymorph of iron sulfide historically used in alchemy. This symbol, derived from medieval alchemical notation, was employed by practitioners to denote the substance in recipes, texts, and laboratory records, often associated with transformative processes involving sulfur and metals. Though marcasite itself is a common, brittle mineral, its alchemical symbol reflects the broader symbolic language used to encode chemical knowledge before modern notation.