pyrite

noun

Pyrite is a common mineral that is often mistaken for gold.

意味（1）

意味（2）

(usually as a plural: pyrites) Any metallic-looking sulphide, such as the above, which is the most common.

意味（3）

(solid state chemistry) (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.