Magnets are most commonly made out of metal, so yes, two metal magnets can repel. But metals such as iron are attracted to magnets even if the metal itself is not magnetized. Iron is attracted to both poles of a magnet, and it can not be repelled by a magnet.
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Gold Copper Brass Aluminum
bar magnet :- cuboid shapecylindrical magnet :- cylinder shape
As I recall, Lodestone (magnetite) was found in a place named Magnesia, hence magnet.
One way to know a coin is not silver is to check it with a magnet. If the magnet sticks to the coin, it is not silver. If the magnet does not stick, it still might not be silver. You can test it, but to do that you need a test kit.
It doesn't matter on the orientation, it is the attraction of the magnet to pull the contact and complete the circuit that matters.