Meaning of PYRITE in English

PYRITE

ˈpīˌrīt noun

( -s )

Etymology: Latin pyrites

1. obsolete : pyrites 1

2. : a common mineral that consists of iron disulfide FeS 2 , has a pale brass-yellow color and brilliant metallic luster, crystallizes in isometric forms (as the cube and pyritohedron), and is burned in making sulfur dioxide and sulfuric acid (hardness 6-6.5, specific gravity 4.95-5.10) — called also fool's gold, iron pyrites

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.