chalcopyrite noun.
[kalkǝ'pʌɪrʌɪt] M19.[mod. Latin chalcopyrites, formed as CHALCO- + PYRITE.]Mineralogy. A tetragonal sulphide of copper and iron which is the principal ore of copper and usu. occurs as metallic brass-yellow masses. Also called
copper pyrites.
[TahlilGaran] English Dictionary ▲