noun🔗ShareMarcasitaThe orthorhombic form of iron disulfide, FeS2, occurring as yellow crystals."The geology student identified the shiny, yellow crystals as marcasite, a form of iron pyrite. "El estudiante de geología identificó los brillantes cristales amarillos como marcasita, una forma de pirita de hierro.geologymineralchemistrymaterialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗SharePirita(jewellery) Pyrite."The antique brooch was decorated with sparkling marcasite, giving it a vintage look. "El broche antiguo estaba decorado con pirita brillante, lo que le daba un aspecto vintage.materialgeologyChat with AIVocabulary GamePractice Reading
noun🔗ShareMarcasitaAny of various metal sulfides, usually iron sulfide minerals."The geology student identified the shiny, brass-yellow mineral as marcasite, an iron sulfide. "El estudiante de geología identificó el mineral brillante de color amarillo latón como marcasita, un sulfuro de hierro.mineralgeologymaterialsubstanceChat with AIVocabulary GamePractice Reading
