$A$ mineral is usually associated with a large amount of unwanted material called

The one that is not a carbonate is

Sulphide ion is a soft base and its ores are common for metals. Which of the following metals commonly occur as sulphide ores?
$(a)$ $Pb$ $(b)$ $Al$ $(c)$ $Ag$ $(d)$ $Mg$
Choose the correct answer from the options given below:

The main ore of silver is .......

All ores are minerals,while all minerals are not ores because:

Differentiate between "minerals" and "ores".