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Beyond the Deceptive Luster: A Brief Study of "Fool's Gold" (Pyrite) "Fool's Gold," scientifically known as ( FeS2cap F e cap S sub 2

), is the most abundant sulfide mineral in the Earth's crust. While it earned its nickname by deceiving 19th-century gold rush prospectors, it has since been recognized as a cornerstone of human industrial and scientific progress. Chemical and Physical Properties Fools Gold

Pyrite forms in a wide variety of environments, including igneous, metamorphic, and sedimentary rocks. The Many Faces of Fool's Gold | American Scientist Beyond the Deceptive Luster: A Brief Study of

: Derived from the Greek word pyr ("fire"), pyrite produces sparks when struck against steel, a property used by ancient civilizations for fire-starting. Geological Formation and Occurrences Fools Gold