Most metals are composed of pure elements or are alloys (mixtures of pure elements.)
Are there metals that are composed of one type of molecule that is metallically bonded together?
The difference between a metal that is composed of one type of compound and an alloy is that in an alloy different elements are attached by metallic bonding but in a metal composed of one compound covalent or ionic bonding attaches multiple atoms together into compounds and then these compounds form metallic bonds with each other.
I have read that Gallium in its pure elemental state forms pairs which are then metallically bonded together which sort of is what I'm wondering about except that I'm wondering if metals can form out of more complicated compounds.
I would also expect there to be a lot of compounds which on their own do not form metals but do not degrade the metallicity of alloys they are put in very much.
I think a more specific and low level question might be: are there covalent compounds that can make metallic bonds with other things?