: When scraped against unglazed porcelain, pyrite leaves a greenish-black streak , while real gold leaves a golden-yellow streak .
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 Fools Gold
: Pyrite is much harder than gold, rating 6 to 6.5 on the Mohs scale . It is brittle and will shatter if struck, whereas gold is soft and will indent. : When scraped against unglazed porcelain, pyrite leaves