The major component of which of the following ores is a sulphide-based mineral?

Peacock ore is:

Sulphide ores are common for the metals

$A$ cuprous ore among the following is:

When is a mineral referred to as an ore?

Match the following List-$I$ (Name of the mineral) with List-$II$ (Type):
| List-$I$ | List-$II$ |
| :--- | :--- |
| $A$. Calamine | $I$. Sulphide |
| $B$. Bauxite | $II$. Halide |
| $C$. Kaolinite | $III$. Carbonate |
| $D$. Cryolite | $IV$. Oxide |
| | $V$. Silicate |