Is pyrite a halide

No, pyrite is not a halide; it is a sulfide mineral composed of iron and sulfur, with the chemical formula FeS₂. Halides, on the other hand, are minerals that contain halogen elements such as fluorine, chlorine, bromine, or iodine combined with metals. Pyrite is often referred to as "fool's gold" due to its metallic luster and yellow color, which can resemble gold.