noun🔗ShareThe common mineral iron disulfide (FeS2), of a pale brass-yellow color and brilliant metallic luster, crystallizing in the isometric system."The prospector excitedly showed his friend a rock covered in pyrite, hoping it was gold, but disappointed to learn it was just "fool's gold". "geologymineralchemistrymaterialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗Share(usually as a plural: pyrites) Any metallic-looking sulphide, such as the above, which is the most common."The curious rock collector thought the shiny yellow stones were gold, but they were just pyrite, also known as "fool's gold." "geologymineralmaterialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗Share(usually as a plural: pyrites) Any metal dichalcogenide that is isostructural to the common mineral."Copper diselenide can occur both as a marcasite and a pyrite."mineralchemistrygeologymaterialsubstanceChat with AIVocabulary GamePractice Reading
