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mineraal CuFeS2 või seda mineraali sisaldav vasemaak, sulphide of copper and iron CuFeS2, a widely distributed mineral
cupriferous pyrite . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/cupriferous%20pyrite/1/eng (19.06.2026)