Pyrite

//ˈpaɪˌɹaɪt//

"Pyrite" in a Sentence (3 examples)

The pyrite output in 1961 was 1.2 million tons, derived mainly from the Hsiang Shan mine in Anhwei and the Ying-te mine in Kwangtung.

China's 13 large foreign fertilizer plants ordered a few years ago are all scheduled to be in operation in a year or two.[…]China's biggest pyrite mine (openpit), being built in Yunfu, Kwangtung Province, was near completion.

Copper diselenide can occur both as a marcasite and a pyrite.

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