pə̇ˈrīd.(ˌ)ēz, -ī(ˌ)tēz also pīˈr-; also ÷ˈpīˌrīts noun
( plural pyrites “)
Etymology: Latin, from Greek pyritēs of or in fire (in pyritēs lithos stone that strikes fire, pyrites), from pyr fire — more at fire
1. obsolete : a stone that may be used for striking fire
2. : any of various metallic-looking sulfides of which pyrite is the commonest — usually used with a qualifying term indicating the component metal
copper pyrites
tin pyrites