Properties of Chalcopyrite
Chalcopyrite is a copper iron sulfide mineral with the chemical formula (CuFeS2). It is the most important ore of copper and is widespread in various geological environments. Chalcopyrite has a brassy yellow color that can tarnish to an iridescent purple or rainbow-colored surface.
The following table provides a comprehensive list of chalcopyrite properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Note: click on the icon to switch between Metric and Imperial units.
Physical Properties | Metric |
---|---|
Chemical Formula | CuFeS2 |
Molar Mass | 183.52 g/mol |
Crystal System | Tetragonal |
Mohs Hardness | 3.5 - 4 |
Density | 4190 kg/m3 |
Color | Brass yellow or honey yellow |
Diaphaneity | Opaque |
Luster | Metallic |
Cleavage | (011) indistinct |
Fracture | Uneven, brittle |
Streak | Greenish black |
Thermal Properties | Metric |
Melting Point | 950 °C |
Electrical Properties | Metric |
Electrical Resistivity | 1.5×10-6 - 9.0×10-5 Ω·m |
Note: unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017.