n. A yellow mineral that is a mixed sulfide of copper and iron, with the chemical formula CuFeS2.
the GNU version of the Collaborative International Dictionary of English
n. Copper pyrites, or yellow copper ore; a common ore of copper, containing copper, iron, and sulphur. It occurs massive and in tetragonal crystals of a bright brass yellow color.
The Century Dictionary and Cyclopedia
n. Copper pyrites, or yellow copper ore.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a yellow copper ore (CuFeS2) made up of copper and iron sulfide
Word Usage
"The ore body grades below into a zone characterized by lean chalcopyrite, which is supposed to represent original or primary deposition from hot waters associated with the porphyry intrusion."