Which among the following sets of elements is present in chalcopyrite?
Which among the following sets of elements is present in chalcopyrite?
$\mathrm{Fe}, \mathrm{S}$
Al, O
Al, Fe, 0
Cu, Fe, $S$
Solution
$\mathrm{Cu}, \mathrm{Fe}, \mathrm{S}$
$\mathrm{Cu}, \mathrm{Fe}$, and $\mathrm{S}$ are among the elements found in chalcopyrite. It's a copper iron sulphide mineral with a tetragonal crystal structure. $\mathrm{CuFeS}_{2}$ is the chemical formula for it. It is brassy to golden yellow in colour and has a Mohr hardness of $3.5$ to 4 . It has a distinctive green-tinged black stripe.