The most obvious physical properties of chalcopyrite are its brassy yellow color, metallic luster, and high specific gravity. These give it a similar appearance to pyrite and gold. ... Gold is soft, has a yellow streak and has a much higher specific gravity. Chalcopyrite is brittle and has a greenish gray streak.
What Colour is chalcopyrite?
Chalcopyrite is the most important and major source of copper metal. It is widely spread copper–iron sulfide mineral with chemical formula (CuFeS2). The color is typically brass to golden-yellow (Fig. 1.15), often tarnished, with greenish-black streak and submetallic luster.
How do you identify chalcocite?
kəˌsaɪt/), copper(I) sulfide (Cu2S), is an important copper ore mineral. It is opaque and dark gray to black, with a metallic luster. It has a hardness of 2.5–3 on the Mohs scale. It is a sulfide with an orthorhombic crystal system.
